Astronomy

Astronomy

These chip-sized spacecraft are the smallest space probes yet

Space initiative dubbed Breakthrough Starshot sent the smallest spacecraft yet into orbit around Earth.

Astronomy

On a mountain in Wyoming, the eclipse brings wonder — and, hopefully, answers

Astronomy writer Lisa Grossman joined scientists on a mountain in Wyoming who were measuring the corona using four different instruments to try to figure out why it’s so hot.

Astronomy

Eclipse watchers will go after the biggest solar mystery: Why is the corona so hot?

Usually when you move away from a heat source, it gets cooler. Not so in the sun’s atmosphere.

Astronomy

Does the corona look different when solar activity is high versus when it’s low?

Carbondale, Ill., will get two eclipses in a row, seven years apart — making it the perfect spot to watch the solar cycle in action.

Astronomy

Cosmic lens lets astronomers zoom in on a black hole’s burps

The beginnings of a jet from an active black hole in a distant galaxy were spotted thanks to a lucky alignment.

Astronomy

Here are the paths of the next 15 total solar eclipses

From 2017 to 2040, there will be 15 total solar eclipses. Here's a map of where to see them.

Astronomy

We share the Milky Way with 100 million black holes

New census calculates black hole populations in galaxies big and small.

Astronomy

Where does the solar wind come from? The eclipse may offer answers

A quick-fire polarization camera should help scientists detect the origins of the solar wind during the Aug. 21 eclipse.

Astronomy

Eclipses show wrong physics can give right results

Math for making astronomical predictions doesn’t necessarily reflect physical reality.

Astronomy

Why are the loops in the sun’s atmosphere so neat and tidy?

Observations during the total solar eclipse may explain why the sun’s atmosphere is so organized despite arising from a tangled magnetic field.

Astronomy

What can the eclipse tell us about the corona’s magnetic field?

The corona’s plasma jumps and dances thanks to the magnetic field, but scientists have never measured the field directly.

Astronomy

Can the eclipse tell us if Einstein was right about general relativity?

During the eclipse, astronomers will reproduce the 1919 experiment that confirmed Einstein’s general theory of relativity.