Rescue mission launches to save NASA telescope that's falling back to Earth
A three-armed spacecraft rocketed into orbit Friday to rescue a NASA telescope that's in danger of crashing back to Earth.
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Could this asteroid be a piece of the moon? A Chinese spacecraft is about to find out
The moon is not the only natural object traveling through space alongside Earth. Several small asteroids travel around the sun in near lockstep with our planet. And just like Earth, these space rocks also take a year to complete a full orbit. Today, we know of eight such "quasi-m
Hunting the tardigrade: one small step in sequencing DNA of all life on Earth
As this year’s invertebrate of the year competition launches, we join scientists studying last year’s winnerNominate your invertebrate of the yearWitek Morek is closely inspecting an old brick-and-flint wall on the Cambridgeshire campus of the Wellcome Sanger Institute.“We are go
Planned 1.7 million satellites 'devastating' for astronomy: Study
The 1.7 million satellites that companies are aiming to launch into Earth's orbit in the coming years will have "devastating consequences for astronomy," new research warned Wednesday.
Why put solar panels on green space when we could put them over car parks?
The long-running series in which readers answer other readers’ questions considers a hot topic within renewable energyThis week’s replies: Are there places on Earth where humans haven’t been?I would like to know why we build solar farms over green space, when we could just put th
Bomb the Arctic, dam the Mediterranean and build a second moon: five outlandish plans to r
Humans have long sought to geoengineer the Earth’s environment. Tim Flannery outlines a few of the wildest ideas from the 20th centuryAn increasing number of scientists think we have let the climate crisis fester for so long that our only hope to stave off ever-intensifying catas
Japan space probe skims asteroid in test for planetary defense
A Japanese space probe performed a flyby of a near-Earth asteroid on Sunday in a test mission for technology that could help protect the planet from space rocks.
Mars express captures dozens of dust devils in Mars valley
Dust devils are a regular feature on Mars. Just like those found on Earth, these mini whirlwinds form when parts of Mars are warmed by the sun, causing air above the surface to swirl upward and carry dust with it. But in Mars' lower gravity (38% that of Earth), these devils grow
Earth's deepest rocks help define upper limit for viscosity beyond which materials effecti
Viscosity is one of the most fundamental physical properties used to describe how materials flow. It governs the movement of liquids, molten rocks and even slowly deforming regions deep inside the Earth. While scientists have long studied materials with low or moderate viscositie
Why Antarctica froze millions of years before the Arctic
East Antarctica hosts the largest ice sheet on Earth, containing enough water to raise global sea levels by 52 meters (171 feet) were it to fully melt. Yet scientists have been puzzled for decades about how and why this ice sheet formed.
Traces of Earth's primordial magma ocean discovered in lava from a modern volcanic eruptio
In May 2018, the island of Mayotte, between Madagascar and Mozambique, began to experience a series of earthquakes that led to the discovery of an underwater volcano, now called Fani Maoré. Multiple scientific expeditions followed, taking samples of the recently erupted lava. Whe
Paleontologists make 'one in a million' discovery of soft tissue preserved in 450-million-
Before the oldest dinosaur, before animals or even plants had expanded onto dry land, ancient relatives of starfish called crinoids, resembling stalked sea flowers, were among the first creatures to flourish in Earth's earliest coral reefs more than 450 million years ago. The stu