Three-sided pyramid on Mars: natural formation or ancient structure? A striking image from NASA archives is once again lighting up the internet. The photo shows what appears to be a three-sided, pyramid-like structure on Mars,...

Astronomers have witnessed a dramatic planetary collision near the distant star Gaia20ehk, providing one of the clearest real-time views of two planets smashing together. The rare cosmic event is helping scientists understand how planetary systems...

When NASA announced that its long-awaited Artemis 2 mission would launch on April 1, the internet reacted with equal parts excitement and skepticism. The reason is simple. April 1 happens to be April Fools’ Day,...

One of the largest known stars in the universe, WOH G64, has undergone a dramatic transformation over the past decade. Once classified as a red supergiant, the star is now considered a yellow hypergiant, a...

Every 22 minutes, like clockwork, something deep in the Milky Way sends a radio pulse toward Earth. It has been doing so since at least 1988. The object, known as GPM J1839-10, sits roughly 15,000...

There may be more than 25,000 potentially dangerous asteroids near Earth that scientists haven’t yet identified—and that blind spot is what worries planetary defense experts the most. According to officials at NASA, humanity has made...

For the first time in the history of human spaceflight, astronauts will be allowed to carry modern smartphones on active missions. The change, announced this week by NASA Administrator Jared Isaacman, marks a quiet but...

Three billion years ago, Mars looked nothing like the cold, dusty world we see today. According to new research from Swiss and Italian scientists, the Red Planet once hosted a vast ocean that covered nearly...

NASA is asking the world a deceptively simple question: What will astronauts eat on Mars? The answer could earn innovators up to $750,000 and help shape the future of human life beyond Earth. The US...

Scientists have taken a major step toward uninterrupted communication with spacecraft far beyond Earth. The European Space Agency has switched on a powerful new deep-space antenna in Australia, creating what engineers describe as a permanent...