Brandon Specktor

A study suggesting the exoplanet K2-18b shows potential signs of alien life has been met with skepticism from the scientific community. Here’s the truth about what the James Webb Space Telescope saw.

The James Webb Space Telescope has discovered Zhúlóng, a candidate for the most distant spiral galaxy in the universe. The perplexing Milky Way 'twin' dates to 1 billion years after the Big Bang, and appears too big to explain.

The James Webb Space Telescope has taken its first look at the near-Earth asteroid 2024 YR4 before a perilous close approach in 2032. The telescope confirmed Earth is safe, but there is a 3.8% chance that our moon may be in trouble.

A rare sunrise solar eclipse will be visible from 13 U.S. states tomorrow (March 29), as well as locations in Canada and Europe. Here's how to watch for free online, no matter where you are.

NASA astronauts Butch Wilmore and Sunita Williams spent 286 consecutive days aboard the International Space Station after their Boeing Starliner spacecraft returned to Earth empty. Is their extended spaceflight record-setting?

You MUST wear protective eyewear to view a partial solar eclipse like the one coming to North American on March 29. Here's how to find a pair of certified solar eclipse glasses from an approved vendor.

While millions of Earthlings watched the "blood moon" total lunar eclipse on March 13-14, the private Blue Ghost spacecraft caught an ultra-rare view of Earth blocking out the sun from the surface of the moon.

The U.S. military's top-secret X-37B space plane has returned from a mysterious 434-day mission in orbit. The enigmatic mission 'broke new ground' for reusable space technology, according to the U.S. Space Force.

The second moon landing attempt by Texas-based Intuitive Machines has ended much like the first, with its Athena lander falling sideways into a crater and shutting down after 12 hours.

In a rare "time-critical" decision, the James Webb Space Telescope will study the true size of the "potentially hazardous" asteroid 2024 YR4 twice over the next few months. The asteroid has a roughly 2.3% chance of impacting Earth in 2032.

A solar explosion called a coronal mass ejection is poised to graze Earth on Friday or Saturday (Jan. 24 or Jan. 25), potentially triggering colorful auroras over the northern U.S.

The enormous near-Earth asteroid (887) Alinda has made its closest approach to our planet in decades, and it's about to peak in brightness in a rare once-in-a-decade event. Here's how to watch it live this weekend.

From solar storms to "shooting stars" over Stonehenge, here are our top 10 favorite space photos of 2024 — and what they told us about our beautiful cosmos.

From the mysterious Planet Nine to the prospect of a "human-caused meteor shower," space and physics editor Brandon Specktor lists his favorite stories of 2024.

An outburst of solar energy looks primed to hit Earth on Thursday, potentially bringing auroras to the northern U.S. on Thanksgiving and Black Friday.

Astronomers using the James Webb Space Telescope have spotted a feeding black hole in the early universe that seems to be eating 40 times faster than is theoretically possible.

A shrieking skull, a cackling witch, a ghostly hand and other cosmic illusions haunt our skies. Which do you think is the spookiest object in the universe?

NASA lost contact with the interstellar Voyager 1 spacecraft for nearly a week after a technical glitch shut off the probe's main transmitter. Using Voyager's weaker backup transmitter, engineers are assessing the problem from 15 billion miles away.

The James Webb Space Telescope may have found dozens of elusive brown dwarfs — strange objects larger than planets but smaller than stars — beyond the Milky Way for the first time ever.

From nebulas and black holes to baby star nurseries and ancient collisions, the universe has never looked more beautiful thanks to NASA's $10 billion-telescope.

A powerful solar outburst hit Earth Thursday, triggering a "severe" geomagnetic storm. Auroras could be visible as far south as California and Alabama, NOAA predicts.