Moon Meets Venus, Spica And The ‘Anti-Mars’: The Night Sky This Week
Topline With the Perseid meteor shower fading and the total solar eclipse now over, attention turns to the…
At the start of 2019, fewer than 2,000 active satellites circled Earth. By June 2026 there were 15,711 — and nearly two out of every three belonged to a single constellation: SpaceX’s Starlink.
Look Up’s quarterly space index, released on 2 June 2026, counted 15,711 active satellites in Earth orbit. It…
Chasing Fire Clouds in Utah
Scientists have long known that volcanoes can launch large quantities of particles into the stratosphere. In the past…
The Milky Way glows brightly in first-of-its-kind neutrino image
IceCube has produced the first neutrino image of the Milky Way, revealing high-energy particle activity concentrated along our…
Uranus and Neptune may not be what we thought
Scientists are rethinking Uranus and Neptune as new evidence suggests the so-called ice giants may contain far less…
We just got a glimpse at what NASA’s Skyfall helicopters will look like in action
If you just can’t wait for NASA’s new Mars helicopters to get to work, you can now see…
Which building blocks of life have been found in space, and which haven’t?
Scientists have discovered the basic ingredients for life in asteroids and meteorites, on Mars, and around young stars.…
In 2016, an amateur astronomer testing a new camera captured a supernova brightening up to 70 million light-years away
First discovered in 1798 by German-English astronomer William Hershel, NGC 613 is a galaxy which lies in…
Voyager 2 is nearly 50 years old, losing about 4 watts of power every year as its plutonium power source fades — and NASA just bought it at least another year of science with an all-at-once power-system swap engineers called the “Big Bang,” performed on a spacecraft with razor-thin power margins and no possibility of physical repair.
Voyager 2 has no repair port that anyone can reach, no spare spacecraft waiting nearby and no possibility…
On this day in space! Aug. 16, 1963: Wingless M2-F1 completes 1st glide flight
On Aug. 16, 1963, NASA’s M2-F1 aircraft prototype made its first glide flight. This wingless aircraft kind of…
Astronomers find water in the harsh environment near the Milky Way’s black hole — Space photo of the week
A view of the Milky Way galaxy. (Image credit: ESA/Webb, NASA & CSA, F. Peißker, J. Lu, F.…
Researchers challenge long-held theory on how Earth withstands extreme space weather
Scientists have long treated Earth’s magnetic field as a sturdy defense against the Sun’s most violent storms. New…