The Most Mysterious Object in the Universe – by Physics Girl

Physics Girl astrophysics series – Brown Dwarfs are among the most recently observed objects in the universe. They have at MOST 8% the mass of the Sun. The lower mass boundary is not known! So they are halfway between stars and gas giant planets. Astrophysicist Daniella Bardalez Gagliuffi sits down with Dianna Cowern to discuss the latest research and the history of Brown Dwarfs Continue reading

The Cosmic Origins of Earth’s Water

Why is Earth is a blue planet? Because it’s covered in water! Where did Earth’s water come from? Of course, water isn’t unique to our planet. The origin of water traces beyond the solar system to the earliest days of the universe. Here’s the story of the galaxy’s H2O. Continue reading

The Journey to Pluto, the farthest world ever explored – TED-Ed by Alan Stern

As of 1989, mankind had successfully sent craft to every known planet in the solar system except one: Pluto. Located in an mysterious region called the Kuiper Belt, Pluto is a scientific goldmine, and could hold clues to the formation of our solar system. Alan Stern explains how NASA’s New Horizons mission is going to allow us to see Pluto for the first time. Lesson by Alan Stern, animation by Eoin Duffy. Continue reading