Bridenstine has also backed up his rhetoric with vocal support for NASA's climate missions, which have been threatened under a Trump presidency.

Today, the Big Bang model of cosmology is pretty much taken for Gospel, and for good reason.

Roughly 13.8 billion years ago, the Universe as we know it expanded from an infinitely hot and dense singularity in space and time.

Celebrated science fiction author Isaac Asimov is as legendary as the stories he crafted.

Last week, astronomers from Arizona State University and MIT announced that they had detected light from the Universe's "Cosmic Dawn."

Seven years after Einstein formulated general relativity, he also proffered another theory describing his recipe for happiness.

When it comes to scientifically mysterious concepts that begin with the word "dark," dark matter attracts most of the public attention.

The search for extraterrestrials has gone on long before the SETI Institute was founded in 1984.

In 2001, James Powell teamed up with George Maise, an aeronautical engineer and 23-year veteran of Brookhaven National Laboratory, to put forth an idea to revolutionize space launches: StarTram.

Look at space under a microscope and what do you see? Nothing.

To anyone infatuated with science fiction, a Dyson sphere might be the Holy Grail.

Sagittarius A*, a supermassive black hole at the heart of our galaxy, may be the blackened husk of some of the first stars in the universe.

In 2015, a team of Scottish scientists announced they had found a way to slow the speed of light. By sending photons through a special mask, the researchers altered their shape.

Aliens should be common but there is no convincing evidence they exist.

According to astrophysicist and educator Ethan Siegel, this modus operandi of Occam's razor does not often suit the complicated world of physics.

When two-thirds of them believe that Bigfoot exists, and students of all ages have a "dismaying" inability to tell fake news from real news, it's obvious that critical thinking education is failing.

NASA's requirements for becoming an astronaut are stringent, but not overly daunting.

Our mighty sun bathes Earth in a tender glow. Reach overhead on a cloud-free, summer day, and it almost feels like you can catch a few of its caressing rays.