In national security space, “dim objects” typically refer to satellites or debris that emit little energy and are hard to see with traditional sensors. Detecting and characterizing them is already ...

What actually happens to a spacecraft during its fiery last moments? That's the key question for the European Space Agency's Draco mission, planned for 2027.

After the asteroid smashed into Earth around 66 million years ago, it didn't take life that long to rebound, a new study ...