Aliens spying on us from afar is a common science fiction trope. Soon we might know what E.T. would see through a telescope. And that information could help identify other Earth-like planets.
exoplanets
Preparing for a Handoff
Scientists with Interstellar Probe, a proposed 50-year flight to interstellar space, are pondering how to plan and carry out a multigenerational mission.
Machine Learning Can Help Decode Alien Skies—Up to a Point
Astronomers are testing the tools that might help them keep up with the upcoming storm of exoplanet atmosphere data.
Looking Back at Our Pale Blue Dot
Astronomers model changes in Earth’s chemical signature over the past 4 billion years to improve the search for Earth-like exoplanets.
Dust from Colliding Asteroids Masqueraded as a Planet
New analysis of Hubble Space Telescope images suggests that Fomalhaut b, once believed to be an extrasolar planet, is, in fact, a cloud of dust that likely formed from the collision of enormous asteroids.
Record-Setting Winds on a Nearby Brown Dwarf
Infrared and radio observations reveal zonal winds moving faster than 2,000 kilometers per hour on a “failed star” in our celestial neighborhood.
Earth’s Skies Transmitted Signs of Life During Lunar Eclipse
Using upcoming ground- and space-based telescopes, scientists hope to make similar observations of the skies of distant, Earth-like exoplanets.
Hot White Dwarfs May Reveal Cold Gas Giants
The gaseous atmospheres of giant planets may evaporate and accrete onto the dense surfaces of white dwarfs, providing astronomers a new way to detect hidden exoplanets.
An Exoplanet with Evolving Clouds of Salts
Clouds form and dissipate on a gas giant orbiting a Sun-like star.
Set to Music, Exoplanets Reveal Insights on Their Formation
Sonification hints at how some Kepler planets may have been configured in the late stages of their development.