Once the largest telescope in the world, Arecibo kept watch for dangerous asteroids using radar. With it gone, the world is preparing the next generation of radar observatories.
telescopes
Posted inResearch Spotlights
Supersharp Images Reveal Scars of Major Eruption on Io
Jupiter’s volcanic moon is captured in exquisite detail by an instrument atop a mountain in Arizona.
Posted inResearch Spotlights
Out With the Old, in With the Cold
A 12-meter telescope at the Arecibo Observatory gets outfitted with a wideband cryogenic system to expand its capabilities.
Posted inResearch Spotlights
James Webb Space Telescope Captures Saturn’s Changing Seasons
Unprecedented images reveal how Saturn’s atmosphere is evolving as summertime winds down in its northern hemisphere.
Posted inNews
“Hot Jupiter” Is in a Possible Death Spiral
Kepler’s first exoplanet is migrating toward its star, an evolved subgiant that is much bigger than first thought.
Posted inFeatures
Shake, Rattle, and Probe
Helioseismology allows scientists to study the interior of the Sun, solve some basic physics mysteries, and forecast space weather.
Posted inResearch Spotlights
A Unified Atmospheric Model for Uranus and Neptune
In a new model, three substantial atmospheric layers appear consistent between the ice giants.
Posted inFeatures
Allen Foster: Greasing Telescope Gears During a 7-Month-Long Night
While overwintering in Antarctica, Foster maintains the South Pole Telescope facilities.
Posted inFeatures
Edgard Rivera-Valentín: Boricua Planeteer
Inspired by the science infrastructure in their own backyard.
Posted inNews
Galaxy Mapper Tracks Asteroids Closer to Home
The Gaia mission’s asteroid survey will help dig deeper into the solar system’s rocky history.