Why is one half of Mars so different to the other? ‘Marsquakes’ may have just revealed the answer
Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy,…
Two lunar landers are on the way to the Moon after SpaceX’s double moonshot
Julianna Scheiman, director of NASA science missions for SpaceX, said it made sense to pair the…
A total eclipse of the Moon, Saturn’s rings ‘disappear’, meteors and more: your guide to the southern sky in 2025
In addition to the annual parade of star pictures or constellations passing above our heads each…
Humans will soon be able to mine on the Moon. But should we? 4 questions to consider
By the end of this decade, nations and private companies may well be mining the surface…
Follow the sun: Nasa spacecraft completes successful fly by
NASA has made history by flying a spacecraft closer to the Sun than any other manmade…
The 20 most-read stories of 2024 on Ars Technica
The Raspberry Pi 5 inside its official case. Credit: Andrew Cunningham The Raspberry Pi 5 inside…
After Russian ship docks to space station, astronauts report a foul smell
Russian space program faces ongoing challenges Zak reported that the cosmonauts aboard the Russian segment of…
A 4.45 billion-year-old crystal from Mars reveals the planet had water from the beginning
Water is ubiquitous on Earth – about 70% of Earth’s surface is covered by the stuff….
Elon Musk’s new job will bring tech ‘disruption’ to the US government – and history says it won’t be pretty
On November 12, United States president-elect Donald Trump announced he would appoint Elon Musk, the world’s…
Egg-shaped galaxies may be aligned to the black holes at their hearts, astronomers find
Black holes don’t have many identifying features. They come in one colour (black) and one shape…
Nearly three years since launch, Webb is a hit among astronomers
From its halo-like orbit nearly a million miles from Earth, the James Webb Space Telescope is…
What’s the difference between fusion and fission? A nuclear physicist explains
Globally, nuclear power accounts for roughly 10% of electricity generation. In some countries, such as France,…
Space isn’t all about the ‘race’ – rival superpowers must work together for a better future
In recent years, a new “space race” has intensified between the United States and China. At…
NASA is launching a major mission to look for habitable spots on Jupiter’s moon Europa
On October 10, NASA is launching a hotly anticipated new mission to Jupiter’s fourth-largest moon, Europa….
SpaceX launches mission to bring Starliner astronauts back to Earth
Enlarge / SpaceX’s Crew Dragon spacecraft climbs away from Cape Canaveral Space Force Station, Florida, on…
NASA has a fine plan for deorbiting the ISS—unless Russia gets in the way
Enlarge / This photo of the International Space Station was captured by a crew member on…
Google backs privately funded satellite constellation for wildfire detection
Enlarge / The Windy Fire blazes through the Long Meadow Grove of giant sequoia trees near…
So what are we to make of the highly ambitious, private Polaris spaceflight?
Enlarge / Crew Dragon enters Earth’s atmosphere on Sunday morning as recovery boats await. Polaris Program/John…