What a delightful little telescope. I know it was launched just a short while ago, but I'm already impatient to find out what it discovers. Thank you Alex & Rafa, this video is a balm for eyes and ears sore with covid-19 news.

@matturner6890

4 жыл бұрын

Who puts balm in their eyes?!?

@Electru522

4 жыл бұрын

If you're excited about what this little thing can do, you must be like me, and are completely ECSTATIC over the JWST launch......JUST LAUNCH IT ALREADY, GOD DAMNIT!!! PLEASE? Pretty please?

@bensmith5288

4 жыл бұрын

@@matturner6890 shhhh. You are not funny

Just a correction in this video, Dimidium is the first exoplanet discovered orbiting a main sequence star. There had been other discoveries before that of exoplanets orbiting a pulsar, or neutron star, called PSR B1257+12. Sorry I wasn't more specific in the video itself!

I love your videos. So cozy and amazing the way you explain the things. Always I keep waiting for the next video.

@bluespinningdotinspace

4 жыл бұрын

Same

@Skip.8221

4 жыл бұрын

I always end up dozing off to them :(

@forrestdirt8935

3 жыл бұрын

Same, I find the videos relaxing after a long day at work.

Riding the terminator line ... what a great idea ... literally, the best of both worlds - constant solar power, constant night viewing.

@scottdorfler2551

4 жыл бұрын

That is a brilliant idea.

@Geckobane

3 жыл бұрын

Really cool

The barycenter of our own solar system is regularly above the surface of our Sun. It looks like it moved out of the Sun again on the 21st July 2016. This means, that with enough shielding, and delta-v, you could briefly fly a spacecraft through the center of our solar system.

Finally ! Was waiting for more space videos and you never disappoint. Very informative. Keep up the good work.

Polish radioastronomer Aleksander Wolszczan with a Canadian radioastronomer Dale Frail published a paper about finding 3 exoplanets orbiting a pulsar (PSR 1257+12 (Lich)) 21.04.1992. So if we're not talking only main sequence stars then the Swiss thing is incorrect :)

@gigiwhat9159

4 жыл бұрын

Thank you I was just about to comment this. What I find extremely interesting and wonderful is the fact these Exoplanets survived the giant supernova which destroyed their giant ancient host star and created the Pulsar Lich (PSR B 1257+12) .

@astrumspace

4 жыл бұрын

Sorry! I should have specified that this was the first exoplanet around a main sequence star. Thanks for clarifying!

@fabricebaro

4 жыл бұрын

@@gigiwhat9159 I was surprised as well. Here's the likely explanation (from wikipedia): "The planets are believed to be the result of a second round of planetary system formation as a result of two white dwarfs merging with each other into a pulsar and a resulting disk of material in orbit around the star."

@gigiwhat9159

4 жыл бұрын

@@fabricebaro Alright good to know this sadly wrecked my imagination of some planets being torn apart by a supernova. But this version sounds more likely and thank you for pointing that out. My information must have been really outdated, I read about the system many years ago. You sparked my interest once again ;)

@gigiwhat9159

4 жыл бұрын

@@fabricebaro But I bet somewhere in this magnificent cosmos there was once a planetary system which met its end like that.

This is such a great video, so helpful into getting us informed about the whole process of finding an exoplanted. This is my favorite field in astronomy right now, it's where our resources should be focused, not Mars. So proud as a European myself of ESA. Thank you so much!

Astrum - I can't say enough how much I love these videos. I find each and every one truly fascinating.

I think the pronunciation the designers had in mind was with a 'K', because that is how "ch" in "characterising" is pronounced. Also, the name of the Egyptian pharaoh, adds another layer of coolness on top.

@SebHaarfagre

2 жыл бұрын

I was thinking this as well, as in the Kheops pyramid I don't _know_ of course

'It was considered a major breakthrough' while displaying one of the discoverers, called Mayor.

Your videos are so relaxing😌

@ZZ-vl5nd

4 жыл бұрын

Believe it or not, I always watch it before sleeping.

@zahidrussell9551

4 жыл бұрын

Hey! Me tooo😁

Is there a video on your site that shows and explains how you do your beautiful animations? It adds so much to the quality of your presentation.

@astrumspace

4 жыл бұрын

Some animations I produce myself using Space Engine and Universe Sandbox. For everything else, ESO, ESA and NASA produce their own animations for media to use. If you have a PC I really recommend checking the software I mentioned out. Space Engine is free too!

@jonminer9891

4 жыл бұрын

@@astrumspace Thanks for your help. I appreciate it.

Quality content and interesting topic as always. Keep up the great work, Alex! I always look forward to new Astrum videos. And I'm excited to see both Cheops' future discoveries and your future video(s) about them. Stay safe and stay healthy!

Thank you, once again! I been obsessing on this subject matter now, for a while! LOVE your videos, and your info! ❤️

Makes me wonder when we will be able to accurately discover the moons of exoplanets and dwarf exoplanets

@semaj_5022

4 жыл бұрын

Unfortunately it seems to be extremely difficult to detect exomoons. In roughly a decade of searching, we've only been able to add one entry to the list of potential exomoons. With as interesting as the moons in our solar system are, I can't help but hope they find a better way to search so we can discover some soon. Especially since there's no rule that says life can only develop on planets and not moons.

@DragonsFrogs

4 жыл бұрын

Semaj_502 Do we know if moons are more or less likely than non-gaseous planets to develop an atmosphere? It’s not really something I’ve come across one way or another...

@rbspider

4 жыл бұрын

Makes me wonder what the goal is . So we now know there are other planets . When we we be able to see aliens.

@rbspider

4 жыл бұрын

@@TheExoplanetsChannel It better be soon I am getting old . If MIT wasn't screwing around in the 1960's I saw what would be called a UFO over the Boston skyline, it was just a red dot and it moved like nothing we have on this planet. Stopped instantly , changed direction instantly and at different angles ,. It performed this zig zag motion several times before it disappeared by going straight up into the night sky.

@DragonsFrogs

4 жыл бұрын

rbspider why do you think that was a UFO? Sounds like it could’ve been literally dozens of things

Thank you.

I just finished watching your vid about the distance of sun and alpha centauri if it was a grain of sand lol and surprisingly i get a new treat.

@RonaldMcPaul

4 жыл бұрын

Jump for Joy

I love this channel - so many great insights into our ever expanding horizon of knowledge!

How can anyone dislike ASTRUM's video? Sad. I happen to enjoy it very much, the videos are always highly informative while making sense. God bless you Astrum keep bringing us high quality content 👌🏼😊.

@shaileshkris

4 жыл бұрын

There are people who don’t yet grasp the roundness of Earth .

@malcolmhardwick4258

4 жыл бұрын

The world is full of imbeciles.

@endosmokingtv3391

4 жыл бұрын

@@shaileshkris I see what you did there lmao, 😂 now that you said that I don't disagree.

@shaileshkris

4 жыл бұрын

EndoSmokingTV cheers mate! Stay safe!

CHEOPS is probably pronounced as Keops, like the pyramid

@darthfakington2227

4 жыл бұрын

Arthur Ribeiro Well it's an acronym, so it probably doesn't matter.

@lorditsprobingtime6668

4 жыл бұрын

Actually I've only ever heard that pyramid pronounced sounding just like CHEOPS anyway. Maybe we pronounce it incorrectly here in Australia but that's all I can ever remember hearing when it's mentioned.

@MellonVegan

4 жыл бұрын

Since it's a Greek name, the Ch would be a fricative sound. Kinda hard to explain in English. Basically like CH in German ich. But not like CH in Scottish loch. More like the k in like in some Northern English dialects.

@mimzim7141

4 жыл бұрын

it should be pronounced khufu as in egyptian

@NicolasUnger

4 жыл бұрын

It's not that difficult people. The CH comes from the word characterising, so it should be pronounced like that. The person in the video is pronouncing it wrong.

I relish your channel ! It's informatics and illuminating and a pure visual feast. You verbalize the Cosmos into our minds. Thanks for all your hard work!

im new here and a new fan of your channel too. your videos about the cosmos are specific, deeper, and more detailed. i sooo love them! ❤

Another excellent quality video!

Excellent video! Thank you!

Thank you, Alex! I love everything you do!

I like the way you do your intro where you give your name and the name of your show the timing is spot on👍

@astrumspace

4 жыл бұрын

Glad you like it :)

Great video. Very cool, defocusing makes sense as it spreads the light out over a larger area. I sometimes defocus binary stars to emphasize the differences in their colors (such as Albireo's gold and blue pair).

These videos never disappoint! Amazing job!

Oh no. I discovered another great science channel and now I am compelled to binge watch. I have things I have to do!

@Astrum Thank you for Educating and Entertaining me during Covid-19 Quarantine !! It would be interesting to know the sources used for your research!

Very nicely explained as always..astrum

These vids are amazing.

Wonderful video!

Where there's Gas giants..There's Moons!!...billions of them

@MrSimonw58

4 жыл бұрын

My missus is a gas giant

@vertigel

4 жыл бұрын

Makes me wonder if the majority of extraterrestrial life is most likely on the moons of gas giants.

@widget3672

4 жыл бұрын

@@vertigel with potential subsurface oceans on the ones we know of on sol system, it's possible there might be microbial or perhaps simple multicellular life... I think planets need a strong solar input that's not too high or too low in order for higher energy life to sustain itself. But with our Jupiter, the moons are quite far out and largely tidally powered, so the impacts of hot Jupiters could mean anything right now!

@Boundlesslylit

4 жыл бұрын

verti wyogel

@DragonsFrogs

4 жыл бұрын

Widget Good point, also makes you wonder what % of life (if any) in the universe is basic/single-celled. That jump to multi-cellular life seems like the 1st barrier in terms of development, at least hypothetically.

His voice is like a lullaby. I use these videos to take a nap!

I love this channel.

I took part in the TESS project. Zooniverse let you study data from stars and help find planets. It was super easy. It was fun.

Very interesting and informative stuff waiting for the Day that you will say JSW is going to launch on nxt Day

Great video thx

muchisimas gracias, Mr McColgan

Thnx Alex M.. (..& Rafa) for sharing 😼 💜 ✌ 🙏 ..love from Australia

This vid is friggin awesome

Thanks so much. Success

Adorei este vídeo pela informação minuciosa da missão CHEOPS!! É uma máquina impressionante com tantas funções...cheia de ciência astronomica capacitada para encontrar uma nova Terra extra solar??

By the way, 51 Peg b is NOT the first exoplanet we've discoverd. It's the first exoplanet that we discovered orbiting around a SUN LIKE STAR! The first ever exoplanet discovered orbits around a pulsar PSR 1257+12, and that was back in 1992. Just to point it out.

Whoa, this is super exciting!

Wow, this is amazing.

Finally some good content after every channel showing only Corona related content.

Have you done a video about using spectrography to determine the metallicity of a star?

Glad to see this. Hope you are well. And know more about exo-planets.

I wonder if the project Starshot is getting on the way, it could help verify the exactitude for those methods of finding the location and composition of new planets.

Something that's kind of similar is Hubble discovered a planet called K2 18b recently which has water vapor in its atmosphere and resides in habitable zone

Didn't Kepler telescope analyzed the exact same thing? I know it's now retired, but the study of the spectrum of light of an exoplanets based on the amount of light of a star when a planet crosses in front of it was seen first in Kepler telescope. Anyway, excellent video Alex, like always. Thank you

Another advancement for stellar science!!

Amazing satellite & telescope. I would think that even though it is only looking at stars that we already know have exoplanets around them, this does not mean it cannot find new exoplanets. We could have a star with known exoplanets that also contains previously unknown exoplanets. e.g.: We could have a star that we knew had 4 exoplanets orbiting it, but could actually have 6 exoplanets orbiting it. Could this happen? Has this happened? I think this is a possibility. Is this a possibility?

@astrumspace

4 жыл бұрын

Depends on the orbital period of the extra exoplanets. Say CHEOPS spends a total of 1 week looking at a specific star, and an undiscovered exoplanet has an orbital period of two days, then yes it would likely discover it. Otherwise, probably not.

This is the best channel i discovered on KZread.🤛

How about a clear image of an exoplanet? Thank you for the cool video!

2 questions! 1. How does CHIOPS focus on one planet for long enough to get good data without the earth's rotation of the sun affecting its observation, if it is always facing it's back towards the sun? 2. How does it know if planets are smaller and larger, and not just closer/further away from its sun?

With all this science, computing, and space monitoring...I expect "something or someone" out there to finally give us an indication that we are not alone. I just hope it isn't the Borg...

How's the family doing Alex? Great video as always btw.

@astrumspace

4 жыл бұрын

All healthy and well here :)

@studtistics2448

4 жыл бұрын

@@astrumspace good to hear!

Plz create a video on how humans would look physically if born and brought up on different planets.

Am I right i suspecting that thus far we've only really been able to discover planets with a reltively short year? In the last 25 years which if any of the planets in our own solar system would we have been able to detect if we had been orbiting around Alpha Centuri or indeed if we'd been on any of the other panets we've discovered? As I understand it we can only as yet detect either large planets or planets with a relatively short year. Is this true? (I hope you can see what I'm getting at)

@massimookissed1023

4 жыл бұрын

The Kepler Space Telescope found the first major tranche of exoplanets until its demise, now TESS is doing that job. Kepler was looking at one patch of sky for 8 years. To confirm an exoplanet you really need to observe 3 transits (orbits) to give two orbital periods that are hopefully the same, confirming a regular periodicity. Jupiter has an orbital period of 12 years, meaning Kepler could have failed to see an ExoJupiter transit even once. Mercury would probably be too small to see, even though it has a handy short orbit of 88 days. That just leaves ExoVenus, ExoEarth, & ExoMars that we might have had a chance of seeing. (Pluto's orbit is 248 years!)

@rhoddryice5412

4 жыл бұрын

@@massimookissed1023 There was a rather slim chance that Kepler would detect an earth sized planet at 1AU. Half a percent for a Sun like Star if I recall correctly. And Venus would still be less than a percent.

Just wondering , are we looking for other habiltal planets theo better understand our own star and planet , it's just they so far away how will we be sure they harbour any life ?

Wouldn't the line where night and day meet twist 360 degrees as the Earth completes one orbit around the sun? How does the satellite stay on course as the day/night circle twists as Earth goes around the sun?

wonderful video...if I may ask, how would Cheops be able to detect planetary orbits that are facing us perpendicularly, or with angles greater than 60 degrees? redshift? ...what wonderful science we have come to terms with...

First exoplanets (three) ever discovered were in 1992 by Polish professor A.Wolszczan. They orbit pulsar. 51 Peg b is first discovered exoplanet orbiting sun like star.

Our Astronomy teacher, about a year and half ago, told us about this incredible satellite and how it would help the search for exoplanet using the trainsit method. And then he told us someone f*ed up in the construction process of the mirror, and the received stars would look a little triangular. We were all laughing when he added "that was actually on purpose. You know Cheops, the pharaoh, the PYRAMIDS...?". We still laught at it to this day. What a meme it has become. You can always get a good laugh from engineers mistakes.

Great channel! Q In the case of very distant stars / planets, wouldn't the presence / motion of the dust and gas between the spacecraft and the system its observing be enough to hide the very precise measurements behind a kind of random background noise of light variation / blocking etc? (The analogy being the atmosphere doing that to ground based readings.) After all, space isn't totally empty, and the distances are huge, so we'd be looking through a lot of material?

nice!

Can we get a link to the musik from Marek Poledna? Especially the song starting at 1:06. Wonderful ambience!

@astrumspace

4 жыл бұрын

I will ask him! He simply sent me the wav. I don't even know if it has a name!

@vertigel

4 жыл бұрын

@@astrumspace Thanks for the reply! I just want to say that I have watched nearly all your videos, and you have consistent high quality. Keep up the good work, and I look forward to your next videos!

@MarekPoledna

4 жыл бұрын

Hi! Thanks.. I created this soundtrack to support this channel, it's not a part of any album.. I did it because I like this channel so much :-)

@vertigel

4 жыл бұрын

@@MarekPoledna Great soundtrack :) Do you have a link to the wav files? Or a soundcloud or another online profile?

Finding Earth-like planets is cool and all but learning the atmosphere composition of said planet is very important

There are larger terrestrial bodies known as “mega earths”. There apparently was one detected around a pulsar, PSR J1719-1438, with the mass of Jupiter but with greater density than the earth’s, in fact one of the densest planets ever found. The gravity there would be truly insane, something like 12Gs, with a orbit less than three hours and within one solar radius of its 12 mile diameter primary of 1.4 solar masses. When I think about it it could be a chthonian planet, that is a the remains of a gas giant whose atmosphere was stripped, leaving a bare core. Essentially, If Jupiter’s atmosphere suddenly vanished, what would remain is a solid core of 20-30 earth masses. But a core with 330 earth masses? Unbelievable!

If you’re on Pluto and a Charon is right above you, could you jump higher than on the other side of Pluto? What would it be like at the center of Pluto and Charon’s combined gravity? Would it rip you apart or would you just float between them?

@rhoddryice5412

4 жыл бұрын

There should be stable Lagrange points in the Pluto Charon system. L1 between the two would be much closer to Charon than Pluto.

@scottdorfler2551

4 жыл бұрын

They would not rip you apart. Study lagrange points, fascinating stuff. Any two body stable system has 5 lagrange points. L1-L5. Some are very stable and an orbit can be maintained without much fuel.

How can it ride the terminator line? It's orbit is independent (generally) of the Earth's orbit, and as Earth revolves through the seasons, the satellite orbit would seem to rotate, with half in daylight and half at night, 6 months out from the launch date. What am I missing? Seems to keep the satellite in terminator orbits, you'd need to expend small daily orbit adjustment firings of its propulsion system.

Could we get an update on this telescope?

I wonder: Couldnt the same reason that prohibits observation from the surface of earth give away the existence of an atmosphere on another world. Impressed with the resolution of modern telescopes as i am, i wonder if it would be possible to detect those atmospheric distortions from the light of a distant star passing through the atmosphere of one of its planets and maybe even get a clue about its density and composition. I know, i know, crazy detailed observation to pull off. But isnt that what we are REALLY looking for: An atmosphere, not more barren chunks of rock?

@AssistantCoreAQI

4 жыл бұрын

That's What Some Telescopes Are Doing.

It’s wild that the entire original trilogy of Star Wars was made without a single known exoplanet, and they got so much right.

@santosl.harper4471

4 жыл бұрын

Daniel Moolman Uhhhhh,,,, Yeah you know.... We had THE planets. You know the widely known ones....

@MS-pz9wd

4 жыл бұрын

What exactly did they get right? The planets being round?

@justanothermind9449

4 жыл бұрын

@@MS-pz9wd how random the planets can be but still hold life, and the life being equally as random.

@MS-pz9wd

4 жыл бұрын

@@justanothermind9449 that's not really.... Anything at all to get right. You may as well say he did a good job making the planets out of rocks

@davidevans3227

Жыл бұрын

i like how moons are often the places to be in science fiction/fantasy..

If they can not see the exoplanets and only see the light variation how they measure the atmosphere whether it is habitable or not?

@rhoddryice5412

4 жыл бұрын

Every element has got a different light signature. The star shines at a planet which reflects the light. Certain wavelengths will be missing and that would tell us the composition of its atmosphere.

One thing I don't understand. Potential exoplanets need to be on parallel axis to angle of our observation, right? What are the chances for that? Most transits of planets we will never see. Is my concern valid?

1:25 That would make a nice wallpaper 😲

The quality of these videos is consistently high

Does our sun (a star) have a wobble i.e that could be seen from another point in space ??

1:26 (top left) Hey, Mars -- what are you doing here?!

@astrumspace

4 жыл бұрын

Haha wow! I hadn't noticed that :)

I forgot this wonderful telescope, tnx for reminding me.

i simply love space.

I am hoping for just some confirmation of a habitable planet before I die, at the very least, before I die.

@davidk1308

4 жыл бұрын

@Asdf yes. We actually have over 50. But the problem is, we only know a few things - that they're in the habitable zone, that they fit in a range to have solid surfaces (though many are on the edge of being giant water worlds or mini gas giants), and how long their orbit is. We don't know whether they have an atmosphere (we're still in the early days of this), what that atmosphere contains, their temperature, their mass _and_ radius (we know this for very few potentially habitable planets) which would give us an idea of their gravity and rough composition, and possible biosigniatures. So we have plenty of ideal targets to study yes, but no definitive answers.

@sandramarotta6220

4 жыл бұрын

We never die because our hopes and drems are still there and everything in the end is the beginning for ever and ever i see these space flowers they are alive for me i can se the coulor you only have to use your eyes

Should've named the satellite CHAOS or CHOPS instead of CHEOPS

@UseQPixinDune

4 жыл бұрын

If I'm not wrong, Cheops was the Pharoah who ordered the construction of the Great Pyramids of Giza. So it could be some kind of symbolism or reference.

What happened to James Webb telescope?

What is the song at 6:00

If a distant civilization was looking at earth, they may be so distant that they see earth before it was habitable.

@indrekveski110

4 жыл бұрын

Or they look at you right now.timetravel is impossible

The first exoplanets were discovered around a neutron star, not around Pegasi B.

What if a star was observed, where because the orbital plane of that solar system is higher in "elevation" in the universe, we were unable to see any exoplanets passing? Also is it possible for solar systems in our galaxy to have a perpendicular orbital plane?

@ProfezorSnayp

4 жыл бұрын

Actually that's a very known issue among astronomers. Only around 10% of stars are in the correct orientation to our point of view to see their planets.

So its like squinting with teary eyes?

1:14 - Polish astronomer Alexander Wolszczan discovered first exoplanet in 1991, published in 1992 in Nature.

Shouldn't Cheops be pronounced as "Ke-ops", after the Egyptian king? His Egyptian name was Khufu, but the Greeks called him Cheops. They didn't use the "Tsch" sound but rather a hard "K" sound, as in "Keops".

picture at 1:19 link?

Space is so cool.

Gibt‘s Astrum auf Deutsch, weiß jemand?

Lightyear how long does it take for man to achieve a lightyear? At what speed one must travel to get to a lightyear? Could one travel with the current technology to see a possible alien planet not in our solar system?

@ProfezorSnayp

4 жыл бұрын

You could travel a light year with any speed, even walking but it would take millions of years. Speed isn't the issue - time is.