For a few months in 2018, as NASA's Dawn spacecraft used up its last drops of fuel, it gave scientists an incredibly detailed look at one of the strangest places in the solar system: Occator Crater.
A new experiment on ultra-rare astatine could open the door to cancer treatments and new research into super-heavy atoms.
The setting sun created an array of colorful clouds above the European Southern Observatory's Paranal Observatory in the Atacama Desert in Chile, which is home to the Very Large Telescope.
New NASA imagery shows that the St. Patrick bay ice caps have vanished from Arctic Canada, two years sooner than scientists predicted
A team of physicists has devised a simple way to measure the duration of a bizarre phenomenon called quantum tunneling.
Scientists may one day detect alien planets outside the Milky Way using the ripples in space and time known as gravitational waves, a new study finds.
While greenhouse gas emissions plummeted as the world locked down, such dips will do "nothing" to slow climate change unless society moves away from fossil fuels, researchers have found.
A famed asteroid observatory overcame a tropical storm to determine the threat level of a space rock zooming by Earth. Happily, in both cases everything worked out just fine.
Scientists have discovered what they believe may be the largest impact crater in the entire solar system, with scars covering a vast portion of Jupiter's huge moon, Ganymede.
The bubble of charged particles that surrounds our solar system looks more like a deflated croissant than a comet, as traditionally envisioned, a recent study suggests.
Green, pulsing ultraviolet images of Mars' "nightglow" are illuminating circulation patterns in the Martian atmosphere.
Lurking just below the atmosphere of Venus is a wall of acid clouds that whip around the planet at speeds close to that of a commercial air jet on Earth.
Marsquakes recorded by NASA's InSight mission offer the first direct evidence of key boundaries in the Martian interior, which could help planetary scientists understand how rocky planets are formed.
Methane and nitrogen glaciers on Pluto expand and "grow" in response to temperature changes on the dwarf planet, new research suggests.