A new theory about 'Oumuamua suggests the weird object that passed through our solar system in 2017 was a remnant of a Pluto-like world from another solar system. As one scientist said, "‘Oumuamua may be the first piece of an exoplanet brought to us."
A SpaceX rocket launched on March 4 that failed to perform a deorbit burn reentered Earth's atmosphere on March 25, 2021. It created a startling light display over Seattle and Portland.
The Event Horizon Telescope collaboration released a new image of the supermassive black hole in the center of massive galaxy M87 on March 24, 2021. The image shows the signatures of a magnetic field.
For the first time, scientists have found evidence for a secondary atmosphere on an exoplanet, created by volcanism beneath the surface. The planet, GJ 1132 b, is thought to have once been a sub-Neptune, but now is a rocky world the size of Earth.
Through 12 years of photographing and stitching together individual astrophotography images, Finnish astrophotographer J-P Mestavainio has created a 1.7 gigapixel panorama of our Milky Way galaxy.
A study here on Earth simulating the weightless conditions of space travel showed that the longer the participants were exposed to a low-gravity environment, the more they perceived facial expressions as angry.
China and Russia are cooperating in plans to build a lunar research outpost on the moon. The China National Space Administration and Roscosmos - Russia's space agency - made the announcement in a memorandum dated March 9, 2021.