Hacker News
- Unintended electromagnetic radiation from Starlink satellites https://www.aanda.org/articles/aa/full_html/2023/08/aa46374-23/aa46374-23.html 55 comments
- Large Interferometer for Exoplanets [pdf] https://www.aanda.org/articles/aa/pdf/2023/10/aa45927-23.pdf 5 comments
- Evidence for anisotropy of cosmic acceleration (dark energy might not exist) https://www.aanda.org/articles/aa/abs/2019/11/aa36373-19/aa36373-19.html 5 comments
- Low-cost precursor of an interstellar mission https://www.aanda.org/articles/aa/full_html/2020/09/aa38687-20/aa38687-20.html 3 comments
- The new clus model shows that projection and resonant scattering can distort X-ray temperature and iron measurements in galaxy clusters, explaining abundance drops in smaller systems like NGC 4636, but not fully in larger ones https://www.aanda.org/articles/aa/full_html/2025/02/aa51431-24/aa51431-24.html 1 comment science
- TIL that Io, Europa and Ganymede are captured in a 1:2:4 orbital resonance. It will take ~1.5 GY for Callisto to be captured as well, completing the 1:2:4:8 resonance chain of the Galilean moons. https://www.aanda.org/articles/aa/full_html/2020/07/aa37445-20/aa37445-20.html 4 comments astronomy
- Neutron Star Collision Leads to the Smallest Black Hole Ever Recorded https://www.aanda.org/articles/aa/pdf/2024/08/aa48758-23.pdf 8 comments science
- Neutron Collision Leads to the Smallest Black Hole Ever Recorded https://www.aanda.org/articles/aa/pdf/2024/08/aa48758-23.pdf 2 comments science
- Astronomers spot the first planet outside the solar system to boast a phenomenon reminiscent of a rainbow. WASP-76 b could have night-side clouds that would be associated with spherical droplets or spherically shaped aerosols of an unknown species, which would be responsible for the phenomenon. https://www.aanda.org/articles/aa/full_html/2024/04/aa48270-23/aa48270-23.html 5 comments science
- Possible Hycean conditions in the sub-Neptune TOI-270 d https://www.aanda.org/articles/aa/full_html/2024/03/aa48238-23/aa48238-23.html 6 comments space
- New findings facilitate solar storm forecasting based on dimming of Sun’s corona https://www.aanda.org/component/article?access=doi&doi=10.1051%2F0004-6361%2F202347011 3 comments science
- Exoplanet LTT-9779b and its composition https://www.aanda.org/articles/aa/full_html/2023/07/aa46117-23/aa46117-23.html 3 comments astronomy
- Framework for the architecture of exoplanetary systems - I. Four classes of planetary system architecture https://www.aanda.org/articles/aa/full_html/2023/02/aa43751-22/aa43751-22.html 4 comments science
- Four classes of planetary systems https://www.aanda.org/component/article?access=doi&doi=10.1051%2F0004-6361%2F202243751 2 comments science
- Two temperate Earth-mass planets orbiting the nearby star GJ 1002 https://www.aanda.org/component/article?access=doi&doi=10.1051%2F0004-6361%2F202244991 6 comments science
- Scientists presented a new method to predict the strength of the 11-year solar cycle. The results are highly important for anticipating and mitigating space weather effects on astronauts, pilots and modern technological systems both in space and on Earth. https://www.aanda.org/component/article?access=doi&doi=10.1051%2F0004-6361%2F202243509 3 comments science
- A small, isolated galaxy is slowly being stripped of the gas between its stars, although there are no visible objects nearby that could be stealing it https://www.aanda.org/articles/aa/full_html/2022/04/aa43307-22/aa43307-22.html 69 comments science
- First observation of a quadruple asteroid - Detection of a third moon around (130) Elektra with SPHERE/IFS https://www.aanda.org/component/article?access=doi&doi=10.1051%2F0004-6361%2F202142623 3 comments science
- Researchers from the Indian Institute of Astrophysics have discovered three supermassive black holes from three galaxies merging together to form a triple active galactic nucleus, a compact region at the center of a newly discovered galaxy that has a much-higher-than-normal luminosity https://www.aanda.org/articles/aa/full_html/2021/07/aa41210-21/aa41210-21.html 4 comments science
- 'Break' discovered in one of the Milky Way's arms https://www.aanda.org/articles/aa/full_html/2021/07/aa41198-21/aa41198-21.html 5 comments science
- Warm terrestrial planet with half the mass of Venus transiting a nearby star https://www.aanda.org/component/article?access=doi&%3Bdoi=10.1051%2F0004-6361%2F202140728 8 comments science
- 40% of the baryonic matter in the Universe has gone undetected so far by scientists, until possibly now. Study of X-Ray emission data suggests this missing 40% is actually hidden within the "cosmic web filaments" that connect galaxies, in the form of hot, diffuse gas. https://www.aanda.org/articles/aa/abs/2020/11/aa38521-20/aa38521-20.html 26 comments science
- WASP-121b is a hot Jupiter that was recently found to possess rich emission(day side) and transmission (limb) spectra, suggestive of the presence of a multitude of chemical species in the atmosphere. https://www.aanda.org/articles/aa/abs/2020/09/aa38365-20/aa38365-20.html 3 comments science
- The Closest Black Hole Is 1,000 Light-Years Away: Scientists estimate the black hole-- HR 6819-- is about 1,000 light-years from Earth, making it the closest known black hole. The existence of HR 6819 sheds light on the supernova explosions that create black holes, scientists suggest. https://www.aanda.org/articles/aa/full_html/2020/05/aa38020-20/aa38020-20.html 4 comments science
- Astronomers discovered a binary star 2,544 light-years away that's so dim we can't see it at all. Yet, based on the way the star's gravity magnifies light, astronomers were able to calculate its mass, distance and orbit of the system. https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/201935097 15 comments science
- Potentially habitable exoplanet discovered only 12 light years away https://www.aanda.org/articles/aa/pdf/forth/aa35460-19.pdf 50 comments science
- Two temperate Earth-mass planet candidates around Teegarden’s Star https://www.aanda.org/articles/aa/pdf/forth/aa35460-19.pdf 3 comments science
- Scientist discovered 'stellar stream' with 4,000 suns https://www.aanda.org/articles/aa/abs/2019/02/aa34950-18/aa34950-18.html 6 comments science
- Scientists may have solved one of the biggest questions in modern physics, with a new paper unifying dark matter and dark energy into a single phenomenon: a fluid which possesses 'negative mass". This astonishing new theory may also prove right a prediction that Einstein made 100 years ago. https://www.aanda.org/articles/aa/abs/2018/12/aa32898-18/aa32898-18.html 55 comments science
- Researchers have found evidence showing that the gas and dust disks that form around early stars systems do not contain enough material to form the planets that develop. https://www.aanda.org/articles/aa/pdf/forth/aa34076-18.pdf 11 comments science
- Scientists Still Can't Decide if Our Closest Earth-Like Planet Is a Fiery Hellscape or Future Home https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/201630020#abs 4 comments science
- Gliese 710 to pass within 13,000AU from the Sun, 5 times closer than previous estimates (in 1.5 million years). http://www.aanda.org/articles/aa/abs/2016/11/aa29835-16/aa29835-16.html 16 comments space
- Does an extremely fast orbital period have any practical repercussions for activity on the planet's surface? http://www.aanda.org/articles/aa/abs/2016/09/aa26326-15/aa26326-15.html 10 comments askscience
- Right now scientists are testing the Big Bang Theory (BBT) by counting the number of neutrons in Lithium atoms of stars that are billions of miles away, just by looking at them. http://www.aanda.org/articles/aa/abs/2013/06/aa21406-13/aa21406-13.html 3 comments science
- In a paper accepted by the journal Astronomy and Astrophysics, the authors show how to use the weak signal from rainbows in starlight reflected by exoplanets to detect the presence of liquid water clouds. [PDF] http://www.aanda.org/articles/aa/pdf/forth/aa20245-12.pdf 3 comments science