Aspen trees - fondly called Quakies by some - have trembling, quivering leaves. Now those leaves have inspired an energy-harvesting mechanism that might rescue dust-laden rovers on Mars.
The runaway pulsar escaped the blast wave of the supernova that formed it, astronomers say, and is hurtling through space so fast it could travel from Earth to the moon in just 6 minutes.
Jupiter's moon Europa likely has a subsurface ocean, possibly salty, with volcanic vents on its ocean floor. A new study suggests it might also have an oceanic jet stream, comparable to the Gulf Stream back here on Earth.
Astronomers used a cutting-edge camera mounted on one of the world's largest telescopes to discover 83 new quasars - powered by central, supermassive black holes - in the very early universe.
Nicknamed the Teacup because of its shape, this quasar is causing a cosmic storm in a distant galaxy. The source of the squall is a supermassive black hole buried at a galaxy's center.
Which stars are the most likely to have habitable planets? A new study suggest that K stars - between the dimmest M-type red dwarfs and sunlike stars - might provide the sweet spot for life.
University of Michigan astronomers say a hyper-runaway star didn't originate from the galaxy's center, as previously believed. Instead, they say, a cluster of young stars booted it from the galaxy's disk.
Opportunity - nicknamed "Oppy" - was active on Mars from 2004 until June, 2018, when a planet-wide dust storm covered it. Its final image is a panorama, acquired from Opportunity's final resting place in Mars' Perseverance Valley.
The Exoplanet Team, led by the Observatoire de Paris, announced this week that the list of known exoplanets - planets orbiting distant stars - has grown to 4,001!