A Mysterious Streak Above Hawaii
7.02.2005

What in heavens-above was that? Not everything seen on the night sky is understood. The Night Sky Live (NSL) project keeps its global array of continuously updating web cameras (CONCAMs) always watching the night sky.

The Milky Way Over Tenerife
5.04.2011

Have you ever seen the band of our Milky Way Galaxy? Chances are you have never seen it like this -- nor could you. In a clear sky from a dark location at the right time, a faint band of light is visible across the sky. This band is the disk of our spiral galaxy.

A Volcanic Great Conjunction
19.12.2020

Where can I see the Great Conjunction? Near where the Sun just set. Directionally, this close passing of Jupiter and Saturn will be toward the southwest. Since the planetary pair...

Balloon TIGER
31.01.2002

Where does a two-ton tiger hang out? Well, in this case the Trans-Iron Galactic Element Recorder (TIGER) experiment hangs from a mobile crane on the far left in this panorama photo recorded last December near McMurdo Station, Antarctica.

Mars: Just The Facts
27.06.1997

Mars, the freeze-dried planet, orbits 137 million miles from the Sun or at about 1.5 times the Earth-Sun distance. It has two diminutive moons, towering extinct volcanos, an immense canyon system, a thin atmosphere...

APOD: 2023 October 23 Б Moon Io from Spacecraft Juno
22.10.2023

There goes another one! Volcanoes on Jupiter's moon Io keep erupting. To investigate, NASA's robotic Juno spacecraft has begun a series of visits to this very strange moon. Io is about...

Marius Hills: Holes in the Moon
24.10.2017

Could humans live beneath the surface of the Moon? This intriguing possibility was bolstered in 2009 when Japan's Moon-orbiting SELENE spacecraft imaged a curious hole beneath the Marius Hills region on the Moon, possibly a skylight to an underground lava tube.

Highest, Tallest, and Closest to the Stars
24.02.2016

Fans of planet Earth probably recognize its highest mountain, the Himalayan Mount Everest, on the left in this 3-panel skyscape of The World at Night. Shrouded in cloud Everest's peak is at 8,848 meters (29,029 feet) elevation above sea level.