A newly discovered gamma-ray burst is unlike any seen before, repeating over the course of a day rather than erupting in milliseconds, leaving astronomers perplexed by its origins.
In the not-too-distant future, "artificial astronauts" could fly as actual crew members on human missions to Mars, and elsewhere in space.
As part of the Artemis 2 astronaut moon mission launching no earlier than 2026, NASA is asking volunteers to test alternative forms of deep-space tracking.
Back in 2019, a consortium of scientists predicted August 2025 as the peak of the solar activity cycle. But where are we now?
"The country that lands on the moon first will shape the rules of engagement in space for decades to come."
It isn't just supermassive black holes that are messy eaters. Using a Japanese space telescope called XRISM, scientists have found that small black holes are a "hot mess," too.
The comet will come closest to Earth on Oct. 20. There's hope that it may become bright enough to glimpse with the naked eye.
The James Webb Space Telescope has investigated the "Goldilocks zone" planet TRAPPIST-1e to search for a potential atmosphere and hints of habitability.
Yes, even Jupiter's moons produce auroras.
"'Oumuamua is in a different category of object. It's much harder to find, but there are a lot more of them."
