Past theories put a collision between the two—resulting in a new elliptical galaxy dubbed Milkomeda—as probable if not inevitable. Some predictions had that happening within 5 billion years ...

Felton Davis offered thousands of strangers a close-up view of the Moon and planets orbiting New York City. Now he’s passing ...

This is a good time to see the Milky Way, which is part of our own galaxy. Looking to the south from late evening ... In the pre-dawn sky, Saturn is in the south east and lower down in the east is ...

"Being off even a little bit represents hundreds or thousands of kilometers in distance on the surface of the Earth." ...

The outlook is promising for future long-term monitoring of planets across multiple wavelengths. Infrared imaging data from ...

Japan’s Himawari weather satellites, designed to watch Earth, have quietly delivered a decade of infrared snapshots of Venus.

A team from the University of Tokyo, led by visiting researcher Gaku Nishiyama, realized that the instrument would be able to measure variation in the temperature on top of the Venusian clouds. They ...

A new batch of 15 Giant Radio Galaxies, the largest of which is 12.4 light-years wide, could help reveal how black holes and galactic mergers help the universe's largest single objects grow so large.

A swarm of giant city-killer asteroids hiding near Venus poses an “invisible threat” to life on Earth, astronomers have warned in a new study. These space rocks, known as co-orbital asteroids ...

This galaxy glows meekly at magnitude 14.4 and spans a mere 3.6’ by 0.8’, so a dark sky and a telescope of 10- or 12-inches is normally required to spot it.

Serena and Venus Williams are taking their sister act to the airwaves. The pair of tennis legends announced Tuesday that they'll be launching a video podcast this summer in partnership with the social ...