409 results
409 results for: exoplanet
- Astronomy
Exoplanets once trumpeted as life-friendly may not exist
Two exoplanets considered among the most promising for hosting life may not exist, a new study suggests.
- Planetary Science
Earth, neighbors weren’t the first rocky planets in the solar system
Jupiter might have swept an earlier generation of rocky planets into the sun, leaving room for Earth and its neighbors to form.
- Planetary Science
Titan’s haze gives clues to clouds on exoplanets
Titan’s hazy atmosphere may help astronomers better understand what’s going on in the clouds of exoplanets.
- Astronomy
Kepler telescope identifies new ‘habitable zone’ planet
A new analysis of data from NASA’s Kepler mission has uncovered a planet orbiting a sunlike star that could be Earth’s “cousin.”
- Planetary Science
Support grows for a return to ice giants Uranus and Neptune
Thirty years ago, Voyager 2 cruised past Uranus and then on to Neptune. Now planetary scientists think it’s time to go back.
- Astronomy
Young, hot exoplanet takes title for longest year
Newly discovered exoplanet sits a whopping 2,000 times farther from its star than Earth does from the sun.
- Science & Society
Humans have pondered aliens since medieval times
People have been fascinated with extraterrestrials for centuries. If only aliens would get in touch.
- Astronomy
Water found on Neptune-sized world
Just four times as wide as Earth, HAT-P-11b is the smallest exoplanet known to store water in its atmosphere.
- Astronomy
Exoplanet water seen in new light
Astronomers used a new technique to characterize the atmosphere of a gas giant exoplanet.
- Astronomy
Planets may emerge from stellar duo gathering icy dust
Gas freezing onto dust grains around a binary star could be setting up a site where comets or even planets might someday form.
- Science & Society
One anniversary to celebrate, one to contemplate
In this issue, both feature articles focus on anniversaries, though of two very different kinds.
- Space
Exoplanet oxygen may not signal alien life
Oxygen in an exoplanet atmosphere may come from water and ultraviolet light, not alien life.
