TESS helps astronomers study red-giant stars, examine a too-close planet
NASA's planet-hunting TESS Mission keeps giving astronomers new realities to examine and explain.
Astronomy
Nov 20, 2019
0
147
News tagged with host star
Worldwide observations confirm nearby 'lensing' exoplanet
Researchers using telescopes around the world confirmed and characterized an exoplanet orbiting a nearby star through a rare phenomenon known as gravitational microlensing. The exoplanet has a mass similar to Neptune, but ...
Astronomy
Nov 1, 2019
9
5890
Simulations explain giant exoplanets with eccentric, close-in orbits
As planetary systems evolve, gravitational interactions between planets can fling some of them into eccentric elliptical orbits around the host star, or even out of the system altogether. Smaller planets should be more susceptible ...
Astronomy
Oct 30, 2019
3
323
Growing old together: A sharper look at black holes and their host galaxies
Some relationships are written in the stars. That's definitely the case for supermassive black holes and their host galaxies, according to a new study from Yale University.
Astronomy
Sep 30, 2019
14
309
The dark sides of extrasolar planets share surprisingly similar temperatures
A new study by McGill University astronomers has found that the temperature on the nightsides of different hot Jupiters is surprisingly uniform, suggesting the dark side of these massive gaseous planets have clouds made of ...
Astronomy
Aug 27, 2019
0
411
How many Earth-like planets are around sun-like stars?
A new study provides the most accurate estimate of the frequency that planets that are similar to Earth in size and in distance from their host star occur around stars similar to our Sun. Knowing the rate that these potentially ...
Astronomy
Aug 14, 2019
8
1570
Distant 'heavy metal' gas planet is shaped like a football
The scorching hot exoplanet WASP-121b may not be shredding any heavy metal guitar riffs, but it is sending heavy metals such as iron and magnesium into space. The distant planet's atmosphere is so hot that metal is vaporizing ...
Astronomy
Aug 1, 2019
5
687
New space discovery sheds light on how planets form
Researchers at Dartmouth College have discovered a planet orbiting one of the brightest young stars known, according to a study published in the journal The Astrophysical Journal Letters. Aged at approximately 45 million ...
Astronomy
Jul 25, 2019
2
334
Ploonets: Exiled moons may explain astronomical mysteries
Moons ejected from orbits around gas giant exoplanets could explain several astronomical mysteries, an international team of astronomers suggests.
Astronomy
Jul 12, 2019
6
320
NASA's TESS mission finds its smallest planet yet
NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered a world between the sizes of Mars and Earth orbiting a bright, cool, nearby star. The planet, called L 98-59b, marks the tiniest discovered by TESS to date.
Astronomy
Jun 27, 2019
0
0
