344 results
344 results for: exoplanet
- Planetary Science
How the laws of physics constrain the size of alien raindrops
Physics limits the size of raindrops, no matter what they’re made of or what planet they fall on.
- Astronomy
The Milky Way may have grown up faster than astronomers suspected
Most of the galaxy’s disk was in place before a merger 10 billion years ago with a dwarf galaxy called Gaia-Enceladus/Sausage, a new study suggests.
- Astronomy
Saturn has a fuzzy core, spread over more than half the planet’s diameter
Analysis of a wave in one of Saturn’s rings has revealed that the planet’s core is diffuse and bloated with lots of hydrogen and helium.
- Space
‘Oumuamua may be a chip knocked off an icy, Pluto-like exoplanet
If the first interstellar visitor were a shard of nitrogen ice, it would explain some of its unusual behavior when it passed through our solar system.
- Space
Crushed space rocks hint at exoplanets’ early atmospheric makeup
Experiments that heat crushed-up meteorites are helping astronomers understand what to look for in exoplanet atmospheres.
- Astronomy
Two exoplanet families redefine what planetary systems can look like
The TRAPPIST-1 and TOI-178 systems, both home to multiple bunched-up planets, have densities and orbits that defy expectations.
- Physics
Diamond holds up at pressures more than five times those in Earth’s core
Even when pummeled with lasers, diamond retains its structure, which could reveal how carbon behaves in the cores of some exoplanets.
- Space
Planets with many neighbors may be the best places to look for life
Solar systems with many planets in circular orbits suggest a calm life-nurturing past, while single exoplanets with eccentric orbits hint at chaos.
- Space
Here are 10 of Arecibo’s coolest achievements
The now-defunct Arecibo radio telescope in Puerto Rico made myriad discoveries over its 57-year run, including of pulsar planets and ice on Mercury.
- Astronomy
Arecibo Observatory, an ‘icon of Puerto Rican science,’ will be demolished
The telescope, known for cameos in moves like Contact and for fast radio burst observations, was feared to be on the verge of collapse.
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- Astronomy
Hubble watched a lunar eclipse to see Earth from an alien’s perspective
Hubble observed sunlight filtering through Earth’s atmosphere during a lunar eclipse to see what a habitable exoplanet’s atmosphere might look like.
