Star Trek Actress Nichelle Nichols to Fly on NASA Mission

It’s been 49 years since Nichelle Nichols took on the role of Lt. Uhura on the original Star Trek series, but her relationship with space exploration is continuing.

PSA: Queen Guitarist Brian May Collaborated with NASA's Pluto Team

There’s actually a very important part of the PEOPLE editorial team dedicated to making sure everyone knows how amazing Queen guitarist Brian May is.

NASA Finds Strange Bright Lights Glowing on Surface of Dwarf Planet Ceres

Time to start rehearsing your “we will not go quietly into the night” speech from Independence Day.

Sarah Brightman's Space Adventure Put on Hold

Sarah Brightman, who conquered Broadway in the ’80s with Phantom of the Opera and Cats, is postponing her trip to space.

Brightman, 54, has been training to fly to the International Space Station on Sept. 1 with the intent to become the first professional musician in history to perform live from orbit.

However, on Friday, it was announced that she was putting the experience on hold “for personal family reasons.”

Chief NASA Scientist Predicts We'll Discover Aliens by 2025

Admitting to a belief in aliens has long carried stigmas of varying severity, but the Mulders of the world may have the last laugh, according to new revelations from NASA.

“I think we’re going to have strong indications of life beyond Earth within a decade, and I think we’re going to have definitive evidence within 20 to 30 years,” NASA chief scientist Ellen Stofan said Tuesday in a live webcast.

NASA to Study Twin Brothers Scott and Mark Kelly, One in Space and One on Earth

Astronaut Scott Kelly has blasted off into space for a yearlong mission. The twist? A piece of him still remains on Earth – well, sort of.

Scott’s identical twin brother and retired astronaut Mark Kelly will undergo a series of medical examinations and genetic testing on U.S. soil while his brother is up in space, all part of a special NASA experiment called the Twins Study.

Sarah Brightman to Blast Off for a Gig Aboard the International Space Station

In the ’80s they conquered Broadway with Phantom of the Opera and Cats. Now, Sarah Brightman and ex-husband Andrew Lloyd Webber have their sights set on an altogether bigger target: Space.

Once again it will be Brightman, 54, who’s in the lead role: The English soprano is preparing to fly to the International Space Station on Sept. 1 with the intent to become the first professional musician in history to perform live from orbit.

Meet Five of the American Semifinalists for a One-Way Trip to Mars!

Excited for their one-way trip to colonize Mars, five of the Mars One final candidates give PEOPLE all the details behind their decision to leave Earth. Subscribe now for instant access to the exclusive interviews.

It sounds like an adventure of a lifetime.

OMG! There's An Emoticon-Shaped Galaxy Cluster Smiling Down From Space!

Smile … you’re on Hubble camera!

While the fullest moon on the darkest night once appeared to be the only thing grinning up in the sky, a recent photo taken by the NASA/ESA Hubble Space Telescope has proven a phenomenon that’s beaming even brighter: a smiling galaxy cluster.

Looking through the telescope at galaxy cluster SDSS J1038+4849, you can spot the galactic emoji by its large, bright orange eyes and its small white nose.

Astronaut Includes His Dogs in Official NASA Portrait

Who knew a NASA portrait could be so doggone cute?

The space program’s traditional pose was temporarily upstaged when astronaut Leland Melvin turned his official NASA picture into an impromptu family photo session.

Clad in his orange NASA space suit, Melvin flashes a huge smile as he happily gets a kiss and a snuggle from his dogs, Jake and Scout.

It wasn’t long before the snapshot set tails – er, tongues – wagging on Twitter.