Astronomy on MSN

The Sky Today on Tuesday, October 21: The Orionids peak, Comet Lemmon is closest to Earth, and Titan makes a transit

Looking for a sky event this week? Check out our full Sky This Week column. October 20: Visit the Pleiades Today is a busy ...

On a Saturn moon, chemicals can do things they can't on Earth

NASA has discovered Saturn's moon Titan can mix molecules in ways previously thought impossible, shedding light on origins-of ...