The Hubble Space Telescope has been sending home images of the universe for more than thirty years, but none of its work would have been possible without the many servicing missions that kept it up to date.

SciShow Space explores the latest mission to search for extraterrestrial life, and the mission of two tiny satellites that aims to make space travel safer.

In the 1700s, sailors used sextants to navigate the seas. Centuries later, these old-timey tools saved the day on not one, but two of the Apollo missions!

Hank revisits his passion for exploring the Red Planet, breaking down the two biggest challenges of sending humans to Mars: radiation and propulsion. He explains the science behind the obstacles future Mars-bound astronauts...

What the astronauts felt when they saw earth from space changed them forever. Author and artist Benjamin Grant aims to provoke this same feeling of overwhelming scale and beauty in each of us through a series of stunning satellite images...

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Conventional vaccine testing is a slow, years-long process. As thousands of people continue to die each day from COVID-19, bioethicist Nir Eyal proposes a radical idea that could dramatically accelerate the vaccine development timeline:...

It finally happened! The James Webb Space Telescope is on its way to capturing never-before-seen images of the universe! But now that it’s airborne and unfurled, what are its next steps before it can deliver the goods?

OSIRIS-REx is launching soon and it will become the first American spacecraft to return samples from an asteroid!

Hank has good news about NASA.

Peter van Uhm is the Netherlands' chief of defense, but that does not mean he is pro-war. In this talk, he explains how his career is one shaped by a love of peace, not a desire for bloodshed -- and why we need armies if we want peace.

NASA just announced the five finalists for the next Discovery missions. It looks like we’ll be sending probes to Venus, studying asteroids, or both!

Hank pays tribute to some of the great scientific minds we lost in 2012, and then apologizes for some mistakes made in recent SciShow episodes.

CubeSats have a lot of advantages, but they need a way to move and still stay small, and that means new miniaturized propulsion systems that can help us get these tiny spacecraft out into the universe.

We might be closer to figuring out how our solar system was born and NASA has two finalists for its next New Frontiers mission.

Many ideas have come and gone, but Project Daedalus was a uniquely ambitious plan from the 1970s that never quite came to be.

We've seen this done in movies right? Well, why don't spaceships have this technology?

Think about the most tired you've ever been at work. It probably wasn't when you stayed late or came home from a road trip -- chances are it was when you had someone looking over your shoulder, watching your each and every move. "If we...

Hank tells us about the planned demise of two lunar satellites that have been collecting data for NASA, and have now reached the end of their mission.

The Indian Space Research Organisation, or ISRO, is on its way to becoming a leader in space exploration - and they're just getting started.

Hank explains why NASA and the European Space Agency are in love with tardigrades and how these extremophiles are helping us study the panspermia hypothesis.

The technology we use for space exploration gets more advanced all the time, but some of our most ambitious programs actually rely on optics invented in the 19th century for lighthouses.

A new crew is headed to the ISS, and Pluto seems to have methane snow.

The future is bright for those of you who want to be asteroid miners! You might soon get your chance!