The personal signature of a modern president carries the same legal authority and symbolic significance as it did when George Washington signed his name with a quill.

If Outlook signature format changes when replying or forwarding an email, copy your signature in Notepad and paste it back, ...

By Sandee LaMotte, CNN (CNN) — For decades, researchers have been collecting samples from hundreds of thousands of women and tracking their health. The work has deepened our basic understanding ...

NASA's Perseverance rover on Mars has collected its 24th sample of Jezero Crater. The 'Comet Geyser' sample is "great for biosignature studies," according to the space agency's Jet Propulsion ...