Rippling, dark-flecked sand dunes near Mars' north pole look like melting chocolate-chip ice cream in an image captured by the European-Russian Trace Gas Orbiter.
Astronomers have discovered the most massive example yet of the dead stars known as neutron stars, one almost too massive to exist, a new study finds.
Astronomers are rushing to study what appears to be the first known interstellar comet — and in some of the very earliest observations, it looks oddly familiar.
A Planet Earth-watching satellite has spotted a vast smoke plume from Saudi Arabian oil-processing facilities after a drone attack on Saturday (Sept. 14).
Small chunks of mineral studding the interiors of space rocks could help scientists pinpoint when the solar system began to form.
Karen Meech wouldn't credit Comet C/2019 Q4 with good timing. But when faced with a chance to study the first known interstellar comet, by golly you take it.
Water vapor, and likely clouds that rain liquid water, have been discovered on an exoplanet that lies in the habitable zone of its star. But there's an issue.
One of the most colorful wonders of the summer sky in the Northern Hemisphere, especially for deep-sky photographers, is the Rho Ophiuchi cloud complex.
The full moon of September 2019 also carries the title of the Harvest Moon for those living in the Northern Hemisphere.
Astronomers took the first multicolor images of a potentially interstellar comet, and it looks spectacular.
NASA's Mars Reconnaissance Orbiter spotted a plume of red dirt billowing into the sky near the planet's north pole in May.
It's always nice to see old friends, and NASA's asteroid-monitoring team has a busy schedule this weekend (Sept. 13 and 14) doing just that.
The Large Magellanic Cloud (LMC), one of the Milky Way's closest galactic neighbors, gets a new close-up in this image from the European Southern Observatory's VISTA telescope.
A new, hours-long Hubble study of the collision site revealed never-before-seen details of the neutron-star merger
Current page: 1