Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.
Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t ...
High up in Earth's orbit, millions of human-made objects large and small are flying at speeds of over 15,000 miles per hour.
An exponential increase in the number of satellites placed in low-Earth orbit has brought advances in telecommunications ...
Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention ...