Recherche par tag: « planet »

120 articles trouvés

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
Tereza Pultarova

11/08/2023 Lecture 6 min

Source de l'article : Space.com
Exoplanets In The Trappist-1 System More Likely To Be Habitable Than Scientists Once Thought
Exoplanets in the habitable zone of the Trappist-1 star, some 40 light-years away from Earth, are more likely to have liquid water than researchers previously thought, according to a new study.
Planet Atmosphere Franck Selsis Trappist-1 Water Life
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
Joe Rao

07/08/2023 Lecture 4 min

Source de l'article : Space.com
See Jupiter And The Half Moon Join Up In The Night Sky Tonight
The moon and Jupiter will be just under the feet of Aires the Ram, in the night sky on the evening of Monday, Aug. 7. With the right binoculars, you could see five moons at once.
Jupiter Moon Night Sky Telescope Pick Hayden Planetarium Star
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
Katrina Miller

31/07/2023 Lecture 4 min

Source de l'article : The New-York Times
Titanium Clouds Engulf This Ultrahot Neptune-Like Planet
A cosmic mirror of sorts, this planet is the first of its size and location to be discovered with an atmosphere.
Planet But Ltt 9779 James Jenkins Ultrahot System Goddard Space Flight Center