Exoplanets
Latest about Exoplanets
Exoplanet with weird orbit is transforming into a hot Jupiter before our eyes
By Robert Lea last updated
Astronomers may have solved the mystery of how hot Jupiter exoplanets are born, finding a gas giant with a weird orbit in the process of transforming into just such a world.
25 years of exoplanet hunting hasn't revealed Earth 2.0 — but is that what we're looking for?
By Monisha Ravisetti published
It's been a long ride for exoplanet science — and for Space.com itself.
'What exactly is a planet?' Astronomers want to amend the definition
By Sharmila Kuthunur published
A newly proposed mass-based definition of a planet reaffirms Pluto as a dwarf planet.
Evidence of water found in atmosphere of mysterious 'metal god of war' exoplanet
By Robert Lea published
The composition and great density of 'hot Saturn' exoplanet Smertrios are a challenge to planet formation models that the detection of water may help solve.
James Webb Space Telescope suggests this exoplanet is our 'best bet' at finding an alien ocean
By Monisha Ravisetti published
James Webb Space Telescope data suggests the exoplanet LHS 1140 b is a water world in its star's habitable zone that sports a lovely, temperate ocean.
Extreme 'hot Jupiter' exoplanet stinks like rotten eggs and has raging glass storms
By Robert Lea published
As if deadly rains of glass, temperatures hot enough to melt lead, and sidewise 5,000 mph winds weren't unfriendly enough, the JWST has found a Jupiter-sized exoplanet also stinks of rotten eggs.
Why puffy exoplanets often dance with perfect rhythm
By Robert Lea published
New research has identified two distinct populations of puffy, sub-Neptune exoplanets with low densities, allowing them to stay in step with their planetary siblings.
Do other planets have plate tectonics?
By Conor Feehly published
Space mysteries Earth's surface is broken up into large plates that rub against each other, causing earthquakes, volcanoes and large mountain ranges. But how unique is our planet's geology?
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