Space

Episode 1: Avi Loeb, Harvard astronomer and alien hunter

In the debut episode of 'Our Friend from Israel,' we chat with Dr. Avi Loeb about why he's searching for aliens and a new Earth for humans.

Stephen Hawking's search for aliens just got a major boost

One of the physicist's final projects is now one step closer to finding extraterrestrial life.

We just discovered something new about Jupiter's mysterious stripes

American space probe Juno is uncovering secrets about our solar system's favorite gas giant planet.

Did scientists just discover dark matter?

One of the biggest mysteries of physics may not be a mystery for much longer.

There's another Earth out there, and a massive fireball may have just obliterated it

Harvard scientist reveals how it still might be possible for us to move there.

Team builds habitat to simulate life on Mars

The shelter will be located near a 25-mile-wide, 200 million-year-old crater in southern Israel.

Super blue blood moon shines over Jerusalem

The rare lunar event stunned skywatchers around the world.

Here’s why this Harvard astrophysicist keeps looking for aliens

Professor Avi Loeb thinks extraterrestrial life could teach us about ourselves and our world.

Harvard scientist reveals a plan to listen for aliens Wednesday afternoon

After discovering a mysterious object hurtling through space, the world's largest telescope is tuning in at 3 p.m. EST. And the world will be listening.

The strangest things we learned in 2017

We discovered so much odd stuff this year about aliens, tigers, apocalypses, goats, lawns and even Albert Einstein.

Who needs earth? Scientists discover 20 new planets that could host life

Our universe just got a whole lot more crowded.

Einstein's prediction leads to dawn of new era in astronomy

In global collaboration, a third of the world's physicists announce a reshaping of our understanding of the universe.

Harvard scientists want to build an Earth-sized shield to block the sun

How else can we protect the planet from solar flares?

Scientists possibly heard aliens calling us last Saturday

More than a dozen radio bursts were heard from a mysterious source in the far reaches of our universe.

New Harvard theory: Aliens could survive apocalypses

Humans may not last through crazy space events, but a new study suggests extraterrestrials could handle them.