SciShow
Does the Sun Have Long-Lost Siblings?
The sun may have thousands of stellar siblings, many of them probably just like it, elsewhere in the galaxy. Find out how astronomers are looking for them, and learn about a match that could be our star's long-lost sibling!
Crash Course
Star Clusters
Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held...
TMW Media
The Very Large Array Telescope: Making pictures with radio waves
What are the different wavelengths of the electromagnetic spectrum? When seen, what can invisible light reveal? What discovers has the VLA found so far? How do astronomers spend their time? The Very Large Array Telescope, Part 2
NASA
NASA in Silicon Valley: Jessie Dotson and Geert Barentsen, Kepler’s Contributions to Astronomy
A conversation with Jessie Dotson, Kepler’s project scientist, and Geert Barentsen, director of the mission's guest observer office, talking about how NASA’s first planet-hunting mission has contributed so much to the field of astronomy.
NASA
NASA | A Swift Tour of the Nearest Galaxies in UV Light
Astronomers at NASA's Goddard Space Flight Center in Greenbelt, Md., and the Pennsylvania State University in University Park, Pa., have used NASA's Swift satellite to create the most detailed surveys of the Large and Small Magellanic...
Curated Video
Exploring the Milky Way Galaxy
Take a space walk through the Milky Way galaxy, our home in the vast universe. Exploring the origins of its name and the concept of galaxies, the video delves into the size, shape, and composition of the Milky Way. It also highlights the...
Getty Images
Rosette nebula (NGC 2237), optical image.
This nebula is an emission nebula, known as the Rosette nebula because of its round, flower-like shape. Emission nebulae are clouds of gas and dust that are ionised by radiation from hot stars within them, causing them to glow. At the...
Getty Images
A video showing the true nature of massive stars at the heart of NGC 3603 as in fact two stars whose light is blended together
A video showing the true nature of massive stars at the heart of NGC 3603 as in fact two stars whose light is blended together
Getty Images
Open star cluster (M7), optical image.
This cluster is sometimes called the Ptolemy cluster after the Greek astronomer who first recorded it in 130AD. The cluster lies around 1000 light years from Earth in the constellation Scorpius, and is thought to be about 220 million...