Astronomers have found evidence that it rains diamonds on Neptune and Uranus, that Mars' ancient water created opals, and that some exoplanets have clouds full of rubies and sapphires. astronomy.com/news/2021/0…
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TIL astronomer Harlow Shapley firmly believed that there was only one galaxy in the universe but when he was presented with an evidence that disproved his view, he said "it destroyed his universe." Then he completely changed his view and devoted his subsequent career in mapping 76,000 galaxies. en.wikipedia.org/wiki/Har…
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AskScience AMA Series: We're an international team of astronomers and engineers working to directly image planets in the habitable zones of nearby stars. Ask Us Anything!

We're a group of scientists from around the globe that came together to work toward the common cause of imaging nearby planets that could potentially support life. You might have seen our work (https://www.nature.com/articles/s41467-021-21176-6#Sec3) in the headlines recently, in which we reported the first sensitivity to sub-Saturn sized planets in the habitable zone of Alpha Centauri along with a possible candidate planet. We'll be on around 2 PM ET (19 UT) and we're looking forward to your questions!

Usernames: /u/k-wagner, /u/erdmann72, /u/ulli_kaeufl

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Astronomers want to plant telescopes on the Moon astronomy.com/news/2021/0…
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πŸ“…︎ Jan 30 2021
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I spent 10 hours over 3 nights in the cold of January πŸ₯Ά to capture the Heart and Soul Nebulae, as any romantic astronomer, I framed them up as a gift to my girlfriend for Valentine's Day πŸ’–
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li'l ultimate astronomer
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Mistaken identity: A presumed supernova is actually something much rarer. What astronomers once thought was a supernova is actually periodic flaring from a galaxy where a supermassive black hole gives off bursts of energy every 114 days as it tears off chunks of an orbiting star. phys.org/news/2021-01-mis…
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TIL that Eratosthenes, a Greek mathematician and astronomer (276 BC), measured of Earth's circumference by using the shadow angles from the sun in two locations. He calculated it was 39,375 km, which is 1.4% less than the real number of 40,076 km en.wikipedia.org/wiki/Era…
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πŸ“…︎ Dec 20 2020
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Astronomers see a Hint of the Gravitational Wave Background to the Universe universetoday.com/149628/…
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Astronomers discover trio of young planets orbiting a teenage sun in a river of stars cbsnews.com/news/astronom…
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Astronomers spotted a galaxy dying after a major collision. It's bleeding out 10,000 suns' worth of gas each year. businessinsider.com/astro…
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Mark Rylance And Michael Chiklis Join Adam McKay’s β€˜Don’t Look Up’ At Netflix - 2 low-level astronomers embark on a media tour to warn of an approaching asteroid that will destroy Earth; Jennifer Lawrence, Leonardo DiCaprio, Meryl Streep, Cate Blanchett, Chris Evans, Jonah Hill and more costar. deadline.com/2021/02/mark…
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Backyard astronomer, let’s chat about astronomy! Tips PayPal AdamsCastle reddit.com/rpan/r/RedditM…
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Astronomers just discovered the oldest and most distant galaxy ever thenextweb.com/syndicatio…
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Dark-coated Starlink satellites are better but not perfect, say astronomers physicsworld.com/a/dark-c…
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β€˜WTF?’: Newly Discovered Ghostly Circles in the Sky Can’t Be Explained by Current Theories, and Astronomers Are Excited singularityhub.com/2020/1…
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πŸ“…︎ Dec 31 2020
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KGB, Computer & Me (1990) - the famous story of Clifford Stoll, astronomer and accidental system administrator, whose 1986 attempt to find who used 75 cents worth of computer time for free began a chase through the FBI, CIA & NSA... to the heart of a hacking spy ring financed by the KGB. [00:56:47] youtube.com/watch?v=hTx9h…
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Astronomers agree: Universe is nearly 14 billion years old. Their observations, plus a bit of cosmic geometry, suggest that the universe is 13.77 billion years old – give or take 40 million years news.cornell.edu/stories/…
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πŸ“…︎ Jan 04 2021
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πŸ”₯ Something behind the moon. Astronomer Jan Koet captured this video. v.redd.it/hcho0gm392z51
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πŸ‘€︎ u/HattoriHanzo983
πŸ“…︎ Nov 13 2020
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Backyard astronomer. Let’s discuss astronomy space time & gravity. PayPal AdamsCastle reddit.com/rpan/r/RedditM…
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GamesMaster (1992) a Channel 4 series similar to Nick Arcade featuring astronomer Patrick Moore in the title role with cheats and reviews in addition to gameplay segments. youtube.com/watch?v=xUT3O…
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For The First Time, Astronomers May Have Heard The Background 'Hum' of The Universe sciencealert.com/we-may-h…
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πŸ“…︎ Jan 11 2021
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Hypatia: Philosopher, Astronomer, Mathematician And Alexandrian
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TIL that the speed of light was first estimated in 1676 by a Danish Astronomer who was timing the eclipses of Io caused by Jupiter. He noticed the period between eclipses increased with Earth's distance from Jupiter and guessed it was because light had to travel a longer distance. en.wikipedia.org/w/index.…
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πŸ“…︎ Nov 01 2020
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I have a teacher who is an scout and an astronomer, and she sends me this photo!
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TIL In 2014, Pope Francis said he would baptise Aliens if they asked. He did not want to close doors to green Martians with "long noses and big ears". In 2010, a papal astronomer also said he would baptise Aliens if they asked, he said "Any entity – no matter how many tentacles it has – has a soul.” independent.co.uk/news/wo…
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πŸ“…︎ Oct 01 2020
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{The Griffon's Saddlebag} Astronomer's Boon | Wondrous item
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Astronomers Just Found Cosmic 'Superhighways' For Fast Travel Through The Solar System sciencealert.com/solar-sy…
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πŸ“…︎ Dec 11 2020
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Astronomers find the youngest, fastest-spinning magnetar yet. This ultra-magnetic neutron star (which also acts like a pulsar) spins at some 1.4 revolutions per second and is a mere 470 years old. astronomy.com/news/2021/0…
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πŸ“…︎ Jan 19 2021
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Here we see a quintuple PHD astronomer and geologist explain how Ramadan disproves Islam because in Iceland and places like Iceland days last way longer. It’s time to convert to Hindu atheism and leave this death cult boys…
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πŸ“…︎ Feb 15 2021
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Astronomer hosts AMA on alien life, gets pushback from other astronomers and scientists in the comments.

Avi Loeb is chair of Harvard Astronomy, and is well-known in the scientific community, partially because of his penchant for writing very short and dramatic papers. Over the past few years a large portion of the Astronomy community has soured on him due to a number of highly speculative papers published on aliens (there's now a dedicated twitter account to tracking his claims of aliens).

Earlier today Avi posted an AMA on r/AskScience promoting his ideas, including a new book. Highlights:

Edit: Grammar.

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πŸ“…︎ Jan 28 2021
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Astronomers confirm orbit of most distant object ever discovered in our solar system β€” nicknamed "Farfarout" cbsnews.com/news/astronom…
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Astronomers Discover Hundreds of High-Velocity Stars, Many on Their Way Out of the Milky Way universetoday.com/149461/…
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πŸ“…︎ Jan 05 2021
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Astronomer Avi Loeb Says Aliens Have Visited, and He's Not Kidding - www.scientificamerican.com scientificamerican.com/ar…
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Newly discovered galaxy 'defies understanding', say astronomers | Science & Tech News news.sky.com/story/newly-…
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πŸ“…︎ Feb 12 2021
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[WP] Two friends, a marine biologist and an astronomer discuss which of space or the ocean is the scariest. This is all fun and games until Beings of the Depths and Cosmic Abominations joins the debate to support their respective domain.
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πŸ“…︎ Feb 03 2021
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Astronomers find no signs of alien tech after scanning over 10 million stars cnet.com/news/astronomers…
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πŸ“…︎ Sep 08 2020
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TIL That when astronomers discovered a rare type of comet doesn't produce a "tail" when close to the sun they named them "Manx Comets", after the Manx breed of tailless cats en.wikipedia.org/wiki/Man…
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πŸ“…︎ Jan 27 2021
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Oumuamua an Alien Object? Yes, says Harvard Astronomer Avi Loeb youtube.com/watch?v=hyKYt…
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πŸ“…︎ Jan 11 2021
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Backyard astronomer wants to engage in discussion about space time gravity and other related topics reddit.com/rpan/r/pan/kwl…
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πŸ“…︎ Jan 13 2021
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Harvard astronomer argues that alien vessel paid us a visit phys.org/news/2021-02-har…
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πŸ“…︎ Feb 07 2021
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A new planet next door? Astronomers have spotted β€œsomething” near Alpha Centauri A, in the star system nearest our Earth and sun. If it turns out to be a planet, it’ll be the first time a planet has been directly imaged within the habitable zone of a star. earthsky.org/space/alpha-…
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πŸ“…︎ Feb 14 2021
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In 1976, astronomer Carl Sagan composed a message that NASA sent out to space from the Arecibo Telescope in Puerto Rico. In 2001, we received a response. youtube.com/watch?v=JkX6g…
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πŸ“…︎ Feb 07 2021
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πŸ”₯ Something behind the moon. Astronomer Jan Koet captured this video. v.redd.it/hcho0gm392z51
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πŸ“…︎ Nov 14 2020
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Astronomer be like
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πŸ“…︎ Feb 13 2021
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Astronomers find a system of six stars made of three eclipsing binaries. Stars orbit their partners and pairs circle each other. NASA's TESS space telescope spotted this strange system.
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πŸ“…︎ Jan 28 2021
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Harvard astronomer argues that alien vessel paid us a visit phys.org/news/2021-02-har…
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πŸ“…︎ Feb 07 2021
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I thrifted this telescope designed for β€œyoung astronomers,” figuring it was worth a shot for only $4. It’s obviously a low-end model but works great! It has a 28x magnification and should be fun to introduce to my 7-year-old; I can’t wait to share views of the moon with him!
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πŸ“…︎ Feb 15 2021
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Astronomers observe the death of a distant galaxy for the first time cbsnews.com/news/astronom…
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πŸ“…︎ Jan 13 2021
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Hundreds of astronomers warn Elon Musk's Starlink satellites could limit scientific discoveries independent.co.uk/life-st…
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