Kicking off the week by evaluating potential deals the Sixers could make as the NBA's Feb. 5 trade deadline nears.

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

How cold is space? Does it ever drop to absolute zero, and what happens if you fall into it without a spacesuit? When you purchase through links on our site, we may earn an affiliate commission.

New satellite records capture how polar ice sheets slide toward the sea, helping scientists better understand ice loss and ...