Planetary Science
- Astronomy
Kepler shows small exoplanets are either super-Earths or mini-Neptunes
The final catalog from the Kepler space telescope splits Earthlike exoplanets into two groups and pinpoints 10 new rocky planets in the habitable zone.
- Astronomy
Eclipse watchers catch part of the sun’s surface fleeing to space
A serendipitous eruption during a solar eclipse showed relatively cool blobs of plasma, wrapped in a million-degree flame, streaming from the sun.
- Planetary Science
See the latest stunning views of Jupiter
Once every 53 days, NASA’s Juno spacecraft zooms past Jupiter’s cloud tops. A new sequence of images reveals the encounter from Juno’s viewpoint.
- Planetary Science
Jupiter’s precocious birth happened in the solar system’s first million years
Jupiter formed within the first million years of the solar system, according to meteorite measurements.
- Astronomy
Scalding hot gas giant breaks heat records
KELT 9b’s sun blasts it with so much radiation that the planet’s dayside is hotter than most stars and its atmosphere is being stripped away.
- Particle Physics
Readers puzzled by proton’s properties
Readers sent feedback on under-ice greenhouses in the Arctic, the Martian atmosphere and more.
- Planetary Science
Why you can hear and see meteors at the same time
People can see and hear meteors simultaneously because of radio waves produced by the descending space rocks.
- Planetary Science
Citizen scientists join the search for Planet 9
Backyard Worlds: Planet 9, a citizen science project, lets space enthusiasts search for undiscovered objects in the sky, including a hypothesized planet at the far reaches of the solar system.
- Planetary Science
Juno spacecraft reveals a more complex Jupiter
NASA’s Juno spacecraft has sent back unexpected details about Jupiter, giving scientists their first intimate look at the giant planet.
- Planetary Science
TRAPPIST-1’s seventh planet is a chilly world
Follow-up observations of TRAPPIST-1 and its seven planets reveals details about the outermost one.
- Planetary Science
TRAPPIST-1’s seventh planet is a chilly world
Follow-up observations of TRAPPIST-1 and its seven planets reveals details about the outermost one.
- Planetary Science
50 years ago, an Earth-based telescope spotted Saturn’s fourth ring
Scientists now rely on spacecraft to chart the intricate rings of the gas giant.
