Recherche par tag: « exoplanet »

74 articles trouvés

Robert Lea

11/09/2023 Lecture 6 min

Source de l'article : Space.com
Exoplanet's Surface May Be Covered In Oceans
The so-called Hycean planet K2–18 b is around twice the size of Earth and orbits in the habitable zone of a star located 120 light-years from our solar system.
Exoplanet University Of Cambridge K2-18 B. K2-18 Trappist-1 Atmosphere Life
Robert Lea

08/09/2023 Lecture 6 min

Source de l'article : Space.com
How Nasa's Habitable Worlds Observatory Will Search Exoplanets For Signs Of Alien Life
Planning is well underway for NASA’s Habitable Worlds Observatory, a telescope project that will hunt for telltale signs of life in the atmospheres of planets outside the solar system.
Hwo Exoplanet Hunter Tess Coronagraph Life Nasa
Brett Tingley

07/09/2023 Lecture 3 min

Source de l'article : Space.com
See The Great Square Of Pegasus Trot Through The Night Sky This Month
Look to the east in the evenings throughout September to find the Great Square of Pegasus, a group of four stars of roughly equal brightness, as it climbs higher in the night sky.
Great Square Pegasus Exoplanet Asterism Night Sky Pegasi
Robert Lea

05/09/2023 Lecture 6 min

Source de l'article : Space.com
Star Blows Giant Exoplanet's Atmosphere Away
A hot Jupiter exoplanet is blowing its top like a cartoon character throwing a tantrum, creating a tail of gas that is the largest planetary structure seen outside the solar system.
Atmosphere Exoplanet Hat-P-32 Jupiter Parent Star System
Sharmila Kuthunur

31/08/2023 Lecture 4 min

Source de l'article : Space.com
Nasa's Exoplanet Hunter Tess Spots Warm Jupiter With Longest Known Year
Astronomers using NASA's exoplanet-hunting TESS satellite have found a "warm" Jupiter with the longest period ever seen with an alien world.
Exoplanet Hunter Tess Toi-4600c Toi-4600 System Star
Charles Q. Choi

30/08/2023 Lecture 5 min

Source de l'article : Space.com
Scorching Neptune-Size World Is Way Too Massive For Astronomers To Explain
Astronomers have unexpectedly discovered the heaviest Neptune-like planet yet — one four times more massive than our solar system's Neptune.
Toi-2196 Exoplanet Luca Naponiello Earth Neptune
Robert Lea

29/08/2023 Lecture 5 min

Source de l'article : Space.com
Bizarre Super-Puffy Exoplanet Hosts Rare 'Thermometer Molecule'
A rare temperature-sensitive molecule usually found in stars has been discovered in the atmosphere of an exoplanet for the first time, a marshmallow-like hot Jupiter called WASP-31b.
Exoplanet Chromium Hydride Wasp -17 Laura Flagg Atmosphere Team
Tereza Pultarova

15/08/2023 Lecture 4 min

Source de l'article : Space.com
Record-Breaking 'Failed' Star Orbiting Stellar Corpse Is 3
Astronomers have discovered a failed star that can't sustain nuclear fusion in its core, but is 3,600 degrees Fahrenheit hotter than the sun.
Dwarf Named Wd 0032-317 Exoplanet James Webb Space Sun Jupiter
Robert Lea

10/08/2023 Lecture 5 min

Source de l'article : Space.com
Stunning Time-Lapse Video Captures 17-Year Journey Of Exoplanet Around Its Star
An incredible time-lapse video tracks the 17-year journey of a distant and massive exoplanet, Beta Pictoris b, around its parent star between 2003 and 2020.
Exoplanet Parent Star Beta Pictoris Footage Jason Wang Orbit
Robert Lea

09/08/2023 Lecture 5 min

Source de l'article : Space.com
The Powerful Winds Of Super Magnetic Stars Could Destroy The Possibility For Life On Their Exoplanets
Cool stars with powerful magnetic fields could have remarkably fast stellar winds that strip away their planets' atmospheres, making even "habitable zone" worlds less friendly to life.
Exoplanet Wind Star M-Type Life Sun
Robert Lea

04/08/2023 Lecture 4 min

Source de l'article : Space.com
A Jupiter-Size Exoplanet Formed Around A Tiny Star
Astronomers are surprised by a metal-rich, massive planet orbiting a tiny star because gas giants aren't supposed to be able to form around such diminutive red dwarf stars.
Exoplanet Toi-4860 University Of Birmingham Ph. D. Speculoos Gas Star
Robert Lea

31/07/2023 Lecture 4 min

Source de l'article : Space.com
Stars With Superpowered Magnetic Fields Could Narrow The Search For Alien Life
With unusually powerful magnetic fields, these stars seem to get a boost when their cores start to drift apart. Thus, they may not be the ideal hosts for habitable exoplanets.
Magnetism Exoplanet 10 Messier 44 Beehive Cluster Team