Tag: astrophysics

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How do we study the stars & how do we measure extreme distances?

How can we know so much about other galaxies? What are they made of? How big are they? How far away are they from Earth? "Want to know the secrets of the universe? Just follow the light." These two TED Eds fro...

First Evidence for Water Ice Clouds Found Outside Solar System

Take a (peacefully quiet) tour through and beyond our solar system to visit a neighboring brown dwarf -- a sort of failed star that's too large to be called a planet -- called W0855. A team of scientists, led by Carne...

Laniakea: Our home supercluster

Our home planet, Earth, circles the sun. The sun, our star, is but one of billions of stars in the Milky Way, our home galaxy... and beyond that? Where on the map of the cosmos is the Milky Way? For the first time, we...

Spectroscopy of Stars – Wonders of the Universe

Understand what the universe is made of by looking at the light of its stars. In this clip from Wonders of the Universe – Stardust, Professor Brian Cox demonstrates how chemical elements emit a unique set of colors wh...

The Giant Magellan Telescope

In the year 2020, seven of the largest mirrors on Earth — 20 tons each — will come together in a 22-story, rotating building located in the southern Atacama Desert of Chile. They will form the Giant Magell...

The Large and Small Magellanic Clouds

Via kqedscience, this is a tour of two of our closest galaxies: the Large and Small Magellanic Clouds. They are between 163,000 and 200,000 light-years away and hold a few hundred million sta...

PBS Off Book: The Beauty of Space Photography

Astrophysics Research Scientist Dr. Emily Rice, Hubble Image Processor Zolt Levay, and Astronomer David W. Hogg discuss the mix of technology, data, and inspiration that we use to make images ...

NASA: Computer Model Shows a Disk Galaxy’s Life History

This cosmological simulation follows the development of a single disk galaxy over about 13.5 billion years, from shortly after the Big Bang to the present time. Colors indicate old stars (r...

Brian Cox’s Favorite Wonder: Saturn’s moon Titan

Brian Cox’s Favourite Wonder from Wonders of the Solar System: Against the stunning backdrop of the glaciers of Alaska, Brian reveals his fourth Wonder. Saturn’s moon Titan is shrouded by a murky, thic...

Saturn’s Mysterious Moons

Saturn’s Mysterious Moons, as well as other phenomenal data about our gas giants and what’s in their orbits, all gathered from Voyager 1, Voyager 2 and Cassini. This video is eighteen-plus minutes of serio...

Dr. Neil deGrasse Tyson: The Most Astounding Fact

Astrophysicist Dr. Neil DeGrasse Tyson was asked by a reader of TIME magazine, “What is the most astounding fact you can share with us about the Universe?” This is his answer. ...