How to Photograph a Meteor Shower?
Taking photographs of a meteor shower can be an exercise in patience as meteors streak across the sky quickly and unannounced, but with these tips – and some good fortune…
Article Type: Astronomy
What Is the Sun Made Of and When Will It Die?
If and when physicists are able to pin down the metal content of the sun, that number could upend much of what we thought we knew about the evolution and…
Cosmologists Debate How Fast the Universe Is Expanding
In 1998, two teams of cosmologists observed dozens of distant supernovas and inferred that they’re racing away from Earth faster and faster all the time. This meant that — contrary…
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