Latest articles by Rafi Letzter
A blowout in Ohio made little news in 2018, but satellite images show it was a major global event.
A new mapping effort revealed critical new details of Antarctica's hidden land.
We live in a very big house, but we can't see most of it.
Neutron stars have never been caught behaving this way before.
Nineteen newly discovered dwarf galaxies seem to be missing their dark matter, and physicists aren't sure why.
The cracks, if they exist, are old, remnants of a time shortly after the Big Bang.
Without the turbulence, the galaxies would die in just a few billion years.
This wasn't what anyone was hoping for.
Physicists think this might be the first of many hidden states of matter that could be uncovered using laser flashes.
Mathematicians have uncovered a big new piece of evidence for one of the most famous unproven ideas in mathematics, known as the twin prime conjecture.
If you'd looked up into the sky in Kyoto, Japan, on April 28, 2017, you may have seen a preview of an event that could, far down the road, threaten the whole Earth.
Good news for scientists. Bad news for any asteroid dwellers.
When 'Oumuamua passed through our solar system in 2017, no one could figure out where the object came from. But astronomers think they've worked out how Comet 2I/Borisov got here.
SpaceX has never flown a person into space in its first spacecraft, the Crew Dragon. But already Musk is showing off his big, shiny Starship — and NASA is bristling.
Astronomers have long hunted a mysterious planet in the outer reaches of our solar system. These scientists think that it might really be a primordial black hole,
Often, when we don't have an immediate explanation for something strange in space, some people blame aliens. But better explanations usually come along in time.
A new, hours-long Hubble study of the collision site revealed never-before-seen details of the neutron-star merger
Astronomers have detected a neutron star system blasting X-ray light at Earth and detected a rare, months-long pattern in those light bursts.
Hurricane Dorian has strengthened to a Category 3 storm as of 2 p.m. Eastern on Friday (Aug. 3), and is expected to reach Florida Monday.
