The rare daytime astronomical event, in which Venus can be seen as a tiny black dot crossing the sun, won't happen again until 2117. Andrea Wulf, author of Chasing Venus, explains how 18th-century astronomers used the event to calculate the distance between the Earth and the sun.
Dimitar Sasselov describes an unprecedented convergence in astronomy and chemistry that may tell us once and for all if we are alone in the Universe. Image:ExoplanetKepler-10 b compared to Earth. (Wikimedia Commons)
The World Science Festival, Columbia University and Nova are hosting a screening and webcast of The Fabric Of The Cosmos: What is Space? It's the first installment of the four-part Nova series season premiere of The Fabric Of The Cosmos, hosted by Brian Greene.
The Fabric of the Cosmos, a four-hour series based on the book by renowned physicist and author Brian Greene, takes us to the frontiers of physics to see how scientists are piecing together the most complete picture yet of space, time, and the universe.
By Richard Harris
NASA's Kepler mission has found a new solar system where a Saturn-like planet spins around twin stars 200 light-years away from us. It's the first direct observation of such an arrangement, and astronomists say they're not sure why the planet is there.
In 2004, after 12 years of applying, José Hernández was selected as a NASA astronaut candidate. Five years later Hernández’s dream came true when he rocketed into space as a crew member of the 128th shuttle mission.