The Japanese Hayabusa 2 spacecraft dispatched the first of a set of smaller missions that will explore asteroid 162173 Ryugu.
The Milky Way's two largest companion galaxies may have once been a threesome — but new data from the Gaia satellite leaves the satellites' history an open question.
TESS finds its first exoplanet — a super-Earth around bright nearby star Pi Mensae — and astronomers watched an asteroid hide a galaxy to get the details on the asteroid's size, shape, and orbit.
An unexpected pattern in the Milky Way's disk of stars points to a recent whack from another galaxy.
After a 10-day lockdown to cooperate with a criminal investigation, Sunspot Solar Observatory is back to looking at the Sun.
A recent analysis of data from NASA's Dawn spacecraft reveals the role of cryovolcanism past — and likely present — on the giant asteroid Ceres.
Thirty years ago, Gene Roddenberry, of Star Trek fame, and three astronomers made the case that the orange-hued star 40 Eridani A ought to host Vulcan, Mr. Spock's home. Now, a robotic survey has discovered a planet around that very star.
Starbirth and stardeath light up a nearby galaxy while faraway galaxies twist and bend in these new images from NASA's Hubble and Chandra space observatories.
Last weekend the 10th edition of what has become a major stargazing event drew thousands of visitors to Mount Desert Island in Maine.
A new finding suggests that LIGO’s neutron-star merger was a typical gamma-ray burst after all.
A new technique gives astronomers a closer look at what makes some stellar carnage so incredibly luminous.
Revised data changed expectations for a star pair that was supposed to merge in 2022.
Cassini's legacy sheds more light on the strange mystery of Saturn's northern polar hexagon.
Juno observations reveal that Jupiter’s magnetic field has a wacky plume.
How did supermassive black holes form? Two studies discovered dozens of middling-mass black holes in dwarf galaxies to fuel an ongoing debate.
Scientists predicted the shape of the solar corona as it would be seen during the August 21, 2017, total solar eclipse. Observations confirmed that they got the broad strokes right.
As told in this month's astronomy podcast, Venus is disappearing in the west after sunset. So September offers you a final chance to see four bright planets at once.
Astronomers have a precise new mass measurement for Beta Pictoris b, a young gas giant still in the throes of formation 63 light-years from Earth.
NASA's Osiris-REX asteroid sample return mission spies target Bennu for the first time. Now the spacecraft is setting up for its close approach in December.
The famed Arecibo Observatory has faced down several funding challenges in recent years, and a hurricane to boot, but now a new project is making the radio dish more relevant to astronomy than ever.
After more than a decade of tantalizing but inconclusive hints, new research shows convincingly that patches of water ice lie exposed on the floors of many permanently shadowed lunar craters.
The Opportunity rover fell silent in June after nearly 15 years of work on the Red Planet. Now the dust storm that prevented its batteries from charging is clearing.
In astronomy news this week: A stunning just-released photo of last year's eclipse, 15,000 galaxies revealed in Hubble's new ultraviolet view of the deep sky, and watching star formation in action in the spiral galaxy M74.
New observations provide solid evidence of heavy metals in a gas giant exoplanet’s atmosphere.
A team of scientists has captured evidence that PDS 70b, the first directly imaged instance of early planet formation, is actively accreting material, and they’ve measured the rate at which it’s growing.