385 results
385 results for: exoplanet
- Astronomy
Large rocky planets excel at ocean building
Rocky planets a few times as massive as Earth may build deeper oceans – and sustain them for longer – than smaller worlds.
- Astronomy
An Earth-sized hell circles faraway star
Kepler-78b, an Earth-sized, extremely hot exoplanet made of rock and iron, is the smallest with known diameter and mass.
- Astronomy
Year in Review: Death of a planet hunter
The Kepler space telescope finishes a brilliant career.
- Astronomy
Earth-sized planet found in star’s habitable zone
Astronomers have found a potentially habitable Earth-sized planet around a cool red star.
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- Astronomy
Infant worlds carve gaps in planet-forming disk
A new image shows planets sweeping up gas and dust in a disk encircling the infant star HL Tau.
- Planetary Science
Gone perhaps, but Kepler won’t soon be forgotten
Astronomers look forward to building on the planet-hunting telescope's discoveries.
- Space
Exoplanet pair orbits two stars
The Kepler spacecraft catches two exoplanets around a binary star system, with one planet in the habitable zone.
- Planetary Science
Distant planets’ atmospheres revealed
Telescopes get first direct glimpse of gases on exoplanets.
- Astronomy
Astronomers explain planets’ backward motion
Giant planets in distant orbits may be reversing the direction of their closer-in neighbors.
- Astronomy
To determine stars’ physical traits, Kepler sees the light
Measuring stellar brightness can yield useful estimates of stars' size and evolutionary stage, and help in the hunt for planets.
- Tech
Reader favorites of 2013
For this issue, the editors selected the 25 most important and intriguing science stories of the year. But online readers seemed to point to a different bunch, showing just how subjective such an exercise can be.
