For the past 20 years, exoplanets known as 'hot Jupiters' have puzzled astronomers. These giant planets orbit 100 times closer to their host stars than Jupiter does to the Sun, which increases their surface temperatures. ...
Astronomy
Jun 21, 2016
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57
There's something about our solar system that appears to be unusual. For some reason, most of our bigger planets are far away from our host star, while closer in are smaller, rocky worlds, including Earth itself.
Astronomy
Jun 23, 2015
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515
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
NASA's Voyager 1, the most distant spacecraft from Earth, is sending science data again.
Space Exploration
Jun 15, 2024
0
39
(PhysOrg.com) -- A team of scientists has found a new planet which orbits the wrong way around its host star. The planet, named WASP-17, and orbiting a star 1000 light years away, was found by the UK's WASP project in collaboration ...
Astronomy
Aug 12, 2009
1
0
New research indicates that there may be many more dwarf planets similar to Pluto in our solar system than previously thought. Studying these distant objects can help astrobiologists understand the basic properties of our ...
Astronomy
Apr 26, 2010
3
0
Because it's bigger, Jupiter ought to have larger, more spectacular rings than Saturn has. But new UC Riverside research shows Jupiter's massive moons prevent that vision from lighting up the night sky.
Planetary Sciences
Jul 21, 2022
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130
Thirty-five years after leaving Earth, Voyager 1 is reaching for the stars.
Space Exploration
Sep 4, 2012
13
0
Our galaxy is home to a bewildering variety of Jupiter-like worlds: hot ones, cold ones, giant versions of our own giant, pint-sized pretenders only half as big around.
Space Exploration
Aug 29, 2016
3
81
(PhysOrg.com) -- Transiting exoplanets are routinely detected when they pass in front of their parent star as viewed from the Earth, which only happens by chance. The transit event causes a small drop in the observed starlight, ...
Astronomy
Jan 14, 2009
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