8. Speaking of sunlight, it’s composed of approximately 40 percent light, 50 percent heat, and 10 percent ultraviolet ...

Gilmour TestFlight1 launch failed, lasting just 14 seconds — but the company calls it “a huge step forward” for Australia's space future.

NASA is fast-tracking plans to deploy a nuclear reactor on the lunar surface by 2030 as a strategic imperative to prevent ...

The solar system’s most distant planet sits 1.1° due north of Saturn, placing them together in a single telescopic field of view all night.

Neil Alden Armstrong was born on Aug. 5, 1930, in Ohio. A naval pilot from 1949 to 1952, Armstrong flew 78 missions in Korea.

USSF-106 mission launches a navigation satellite for the U.S. Space Force, flanked by six other commercial and international ...

Science pulls the famed 2011 'arsenic life' study on GFAJ-1, reigniting debate over scientific standards and editorial ...

If you head out before sunrise (say, about 5 a.m. local time) and look eastward during the next few days, you’ll see ...

August brings Saturn and Neptune together, offers two shadow transits of Titan, and sees a conjunction of Venus and Jupiter.

The first of two Titan shadow transits this month occurs this morning — can you catch the big, black shadow crossing Saturn’s ...

Asteroid Vesta stands in line with two of Libra’s stars this evening, making the trio an easy-to-spot target in binoculars or any telescope.

Neptune and Saturn appear together in a telescope as Mars passes a star in Virgo and Titan’s shadow transits Saturn in the ...