It used to be that you could get on a Concorde jet and fly across the Atlantic ocean faster than the speed of sound, but what does the future hold for supersonic flight?

If you've ever wanted to get up-close and personal with the Moon, you might want to look up this Monday, because the moon will look larger and brighter than it has for decades.

The 1960s were an optimistic time for space exploration - so much so that a team designed a rocket called the Sea Dragon that was big enough to launch an entire space station from the sea in one go!

In this video Paul Andersen explains how Newton's Second Law applies when a net force acts on a body. The net force vector and the acceleration vector will act in the same direction. If an object acts on another object in a system the...

Entrepreneur Elon Musk is a man with many plans. The founder of PayPal, Tesla Motors and SpaceX sits down with TED curator Chris Anderson to share details about his visionary projects, which include a mass-marketed electric car, a solar...

Rockets are super amazing, but how do we get something that weighs as much as 100 elephants all the way into space?

Hank demonstrates how to build a hybrid rocket engine in your kitchen!

Hank talks about space elevators, and why we shouldn't expect to see one any time soon.

Taylor Wilson was 14 when he built a nuclear fusion reactor in his parents' garage. Now 19, he returns to the TED stage to present a new take on an old topic: fission. Wilson, who has won backing to create a company to realize his...

Hank summarizes the five reasons why infrared telescopes were supposed to be impossible to build, and then describes how a team of scientists and engineers overcame those obstacles to build the James Webb Space Telescope.

Some satellites orbit in the same direction the planet rotates, which means they get a boost for their launch, but most have orbits where that isn’t ideal, and that creates some challenges for engineers.

On October 4, 1957, the Soviet Union launched the satellite Sputnik and, with it, an international space race. The United States and the Soviet Union rushed to declare dominance of space for 18 years, until the two countries agreed to a...

In this video Paul Andersen explains how the center of mass of an object represents the average position of matter in an object. The center of mass of a system is a combination of all the objects within the system. As long as no...

Listen, we know you've thought about it, and we're here to give you THE DEFINITIVE ANSWER to one of the greatest science questions of all time. How long would it take to get to the MOON by farting? Join Gabe on PBS Space Time as we walk...

60 years ago, in January 1958, the United States launched its first satellite, Explorer 1.

Big, fiery rocket launches are just too powerful for something like a toaster-sized CubeSat once it’s in space. Electrospray propulsion is a promising new way to move these little satellites.

The basic physics behind how rockets work!

We have discovered an enormous black hole that’s older and farther away than any we’ve ever seen, and a recent rocket launch did not go as planned.

Squeaks and Mister Brown are so excited about rockets, they're going to make their own! You can join in on the fun and learn how to make one too!

SpaceX CEO Elon Musk announced some ambitious plans at the International Aeronautical Congress. If he's right, we could have humans living on the moon and Mars within a decade, and you might never have an 18 hour flight again!

New ReviewOn February 21, 1931, Germany launched its first liquid-fueled rocket … sort of. The rocket only made it about ten feet off the ground. To be fair, the rocket itself was only two feet tall, so it did achieve an altitude of about five...

New ReviewA Rocket Lab Electron rocket launched JAXA's RAISE-4 satellites from New Zealand. Credit: Rocket Lab

On January 21, 1960, a monkey named Miss Sam launched on a Little Joe rocket to help NASA test the launch escape system for its new Mercury spacecraft. This spacecraft would ultimately carry the first American astronauts into space. Miss...

On January 17, 1985, the United States launched its 1,037th and final Aerobee rocket. Aerobee rockets were the first sounding rockets that the U.S. launched to research Earth's upper atmosphere. The small, suborbital rockets measured...