NASA conducts studies of Unidentified Aerial Phenomena (UAP). NASA Associate Administrator for the Science Mission Directorate, Dr. Thomas Zurbuchen, explains. Credit: Space.com | Animations provided ...

Using Event Horizon Telescope observations of M87's black hole from 2017, 2018 and 2021, "astronomers have found some changes in this now iconic image that could be caused by variations in the ...

The James Webb Space Telescope (JWST) is allowing astronomers to examine distant galaxies in the far reaches of the early universe for the first time. Some of these have chemical signatures that seem ...

Over the course of billions of years, the Universe has steadily been evolving. Thanks to the expansion of the Universe, we are able to "see" back in time to watch that evolution, almost from the ...

We may have finally seen the first generation of stars. Astronomers have been looking for these primordial behemoths, called Population III stars, for decades. Now they have found what may be the most ...

In the distant past, the Solar System was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time ...

The highest energy neutrino ever detected from space may finally have an origin story. Mathematical analyses suggest that the ghost particle could’ve come from a theoretical object known as a ...

Astronomers have announced that they have discovered a new neighbour in the earth’s skies: asteroid 2025 PN7, confirmed in September 2025 to be the planet’s latest quasi-satellite. (The prefix ‘quasi’ ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Stars are the fundamental building blocks of our ...