Discovery Alert: a 'Cool' Planet – with Plenty of Atmosphere?
Artist’s rendering of TOI-1231 b, a Neptune-like planet about 90 light-years away from Earth. Credit: NASA/JPL-Caltech
The discovery: A planet some 90 light-years away from Earth is oddly reminiscent of our own Neptune – that is, a gaseous world with a potentially rich atmosphere, ripe for study. The planet is more than 3 ½ times as big around as Earth and warm by Earthly standards at 134 degrees Fahrenheit (57 Celsius).
Are Planets Formed in Sticky Environments? | astrobites
This guest post was written by Tony Rodriguez, a first-year graduate student in the Astronomy Department at Caltech. His research currently spans from studying outbursting young stars to finding stellar-mass black holes with microlensing. Outside of research, he enjoys music and songwriting, and finding breaks to go on runs around Pasadena and the LA area.
Author's Institutions : Department of Applied Mathematics and Theoretical Physics, University of Cambridge and the Institute for Advanced Study
We've Found 372 New Alien Planets Using A Long-Dead Telescope Say Scientists
A new algorithm has uncovered 372 brand new planet candidates in data from the now defunct Kepler ... [+] Space Telescope's K2 mission.
Scientists have unearthed a staggering 372 new exoplanet candidates from data collected by a NASA space telescope that stopped working in 2018.
But the K2 data proved to be too "noisy" for algorithms to automatically "find" candidate exoplanets. So people looked at the data themselves. It worked—to a point. "Human vetting of the datasets found 889 exoplanet candidates, so it was fruitful, but our goal was to fully automate the process," said Zink.
Liquid water on exomoons of free-floating planets | EurekAlert! Science News
In cooperation with colleagues at the University of Concepción in Chile, LMU physicists Prof. Barbara Ercolano and Dr. Tommaso Grassi (both of whom are members of ORIGINS, a Cluster of Excellence) have now used mathematical methods to model the atmosphere and gas-phase chemistry of a moon in orbit around a free-floating planet (FFP). An FFP is a planet that is not associated with a star.
FFPs are of interest mainly because the evidence indicates that there are plenty of them out there. Conservative estimates suggest that our own galaxy hosts at least as many Jupiter-sized orphan planets as there are stars - and the Milky Way itself is home to well over 100 billion stars.
The Moons of Rogue Planets Could Have Liquid Surface Water and Thick Atmospheres.
And it turns out that large gas planets don’t even have to orbit close to their star to have moons with liquid water. We know, for example that the Jovian moon of Ganymede has a water ocean beneath its icy surface. Europa is known to have more water than Earth, and even Saturn’s small moon Enceledus has liquid water.
Reference: Patricio Javier Ávila, et al. “ Presence of water on exomoons orbiting free-floating planets: a case study .” International Journal of Astrobiology FirstView (2021): 1-12.
Citizen Scientists Discover Two Gaseous Planets Near Bright Sun-like Star 352 Light-Years Away
(NASA) – At night, seven-year-old Miguel likes talking to his father Cesar Rubio about planets and stars. "I try to nurture that," says Rubio, a machinist in Pomona, California, who makes parts for mining and power generation equipment.
Now, the boy's father can claim he helped discover planets, too. He is one of thousands of volunteers participating in Planet Hunters TESS, a NASA-funded citizen science project that looks for evidence of planets beyond our solar system, or exoplanets. Citizen science is a way for members of the public to collaborate with scientists.
NASA discovers 'weird' Earth-like planet with 'unknown' atmosphere. Know more
Nasa discovered exoplanet TOI-1231 b orbiting an M dwarf star The planet's atmosphere is approximately 330 Kelvin or 56.85 degrees Celsius, making it one of the coolest, small exoplanets accessible for atmospheric studies discovered yet
Happening on Twitter
Citizen scientists, including a father of a 7-year-old in California, have discovered two planets beyond our solar… https://t.co/E8HMC8vooZ NASA (from Pale Blue Dot) Sat Jun 12 18:39:00 +0000 2021
#PPOD: This enhanced-color image of Jupiter's bands of light and dark clouds was created by citizen scientists Gera… https://t.co/hkdcxzaYNv SETIInstitute (from Mountain View, CA) Fri Jun 11 14:15:14 +0000 2021
Discovery alert! Citizen scientists help discover two exotic worlds orbiting a star called HD 152843, about 352 li… https://t.co/H9nNwSpyjt NASAExoplanets (from Beyond) Thu Jun 10 19:02:29 +0000 2021
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