Today in History for July 17: In 1505, future church reformer, Martin Luther entered the Augustinian monastic order at Erfurt in present day eastern Germany. He was 21. In 1674, the second census of ...

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

The newest visitor is 416 million miles from the sun, out near Jupiter, and heading this way at a blistering 37 miles per ...