351 results
351 results for: exoplanet
- Astronomy
A newly found world blurs the boundary between planet and moon
The object orbits a brown dwarf that orbits a star, and astronomers aren’t sure if it’s a planet, a moon — or something else entirely.
- Astronomy
This “exotic weirdo” exoplanet has a rocky surface and an atmosphere
Astronomers found a helium atmosphere around a rocky exoplanet — a good sign for the search for life outside the solar system.
- Planetary Science
A chemical ‘Goldilocks zone’ may limit which planets can host life
Life needs nutrients like nitrogen and phosphorus. But without the right balance of oxygen, these elements get locked away in planets’ cores.
- Astronomy
This inside-out planetary system has astronomers scratching their heads
A rocky exoplanet in the LHS 1903 system defies planet formation models, hinting that gravitational upheaval reshaped the red dwarf’s four worlds.
- Astronomy
New Hubble images may solve the case of a disappearing exoplanet
A massive collision between two asteroid-sized bodies around a nearby star offers a rare look at the violent process of planetary construction.
- Astronomy
Against the odds, a burbling lava planet retains an atmosphere
The James Webb Space Telescope detected an atmosphere on a lava-covered exoplanet, evidence that small planets close to stars can have atmospheres.
- Astronomy
A new hunt for an Earth analog begins
The Terra Hunting Experiment will track the wobbles of dozens of stars nightly for years in the most focused hunt yet for an Earth twin.
- Astronomy
Some planets might home brew their own water
Tests on olivine hint that water-rich exoplanets could generate H2O internally, possibly explaining ocean worlds and even some of Earth’s early water.
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Math puzzle: The homesick rover
Solve the math puzzle from our February 2026 issue, where we plan a return passage for a robotic explorer that doesn’t want to explore.
- Astronomy
New images reveal Betelgeuse’s buddy star
A century of hints has suggested the famed red supergiant had a star pal but seeing it amid Betelgeuse’s brightness has been hard — until now.
- Planetary Science
Meet the Milky Way’s puffiest planets
Two “superpuff” planets orbiting a sunlike star over 1,000 light-years from Earth are as big as Jupiter and as dense as cotton candy.
- Planetary Science
In a first, the Webb telescope found a planet by actually ‘seeing’ it
Finding a Saturn-sized world around the young star TWA 7 could pave the way for the Webb space telescope’s direct observation of other exoplanets.
