Astronauts aboard the International Space Station took this image of southern Scandinavia, showing the northern lights aurora, just before midnight under a full moon on April 3, 2015.
A Hubble Space Telescope image of the Ant Nebula. Astrophysicist Adam Frank spent last week at an international meeting in Hong Kong trying to understand the science of what these objects tell us about the last gasp of dying stars like the sun.
NASA, ESA and the Hubble Heritage Team
President Donald Trump shakes hands with EPA chief Scott Pruitt on June 1 after speaking about the U.S. role in the Paris climate change accord in the Rose Garden of the White House in Washington.
The Astronomers Monument in Griffith Observatory, Griffith Park, Los Angeles, Calif. shows Johannes Kepler in the center flanked by Isaac Newton, on the left and Galileo Galilei on the right.