Observations suggest that Nereid is no party crasher like Triton and likely survived by escaping into its extreme, elliptical orbit around Neptune.
New gamma-ray observations from NASA’s Fermi Space Telescope suggest ultra-magnetic neutron stars called magnetars could be fueling superluminous supernovae.
New simulations suggest a violent collision 11 billion years ago reshaped our Galaxy and triggered a burst of star formation.
Our solar system has been moving through the local interstellar cloud, left by a supernova, for over past 80,000 years.
Nearly 15,000 “city-killer” asteroids are still missing from our maps. Scientists know they’re out there. They just can’t see them yet.
The motion of galaxy clusters in the distant Universe has just yielded the largest-scale test yet of the laws of gravity.
There’s a fresh twist in the mystery of the “little red dots.” Astronomers say they’ve found a new specimen, which they’re calling an “X-ray dot.
A newly observed planetary system, dubbed TOI-201 is an outlier. Surprisingly, observations of the system’s three known planets have revealed orbits that change in real time. That is to say, they shift on human timescales.
A bizarre planetary pairing 190 light-years away is challenging everything - a “lonely” hot Jupiter — typically found without nearby companions — is sharing its system with a smaller mini-Neptune tucked even closer to the star.
Astronomers using the James Webb Space Telescope have spotted something that shouldn’t exist—at least not so early in the universe. A massive galaxy, formed less than 2 billion years after the Big Bang, appears to have no rotation at all.
The Universe’s biggest black holes may not be born giants after all. Scientists analyzing gravitational-wave signals from dozens of black hole collisions found evidence that the heaviest black holes are likely “cosmic recyclers” .
NASA has uncovered over 10,000 new candidate planets across our galaxy. Scientists found them through a single survey of data captured by the TESS space telescope.
Astronomers have spotted a tiny world with an atmosphere beyond the orbit of Neptune. It should be too small for an atmosphere to be possible.
Astronomers have discovered what they now call the most distant red galaxy identified to date.
A team of astronomers have discovered a giant volcanic cave hiding beneath the surface of Venus.
