Space

Spacecraft are expensive and intricately engineered machines designed to perform complex missions in harsh space environments. They're costly and require a long time to design and build. Due to their uniqueness and high value, and the need to keep them sterilized, they're assembled in clean rooms that limit the amount of dust and microbes. New research shows that microbes are adapting to these clean rooms and learning how to thrive in them.

Saturn’s moon Titan is an intriguing world cloaked in a yellowish, smoggy haze. Similar to Earth, the atmosphere is mostly nitrogen and has weather, including clouds and rain. Unlike Earth, whose weather is driven by evaporating and condensing water, frigid Titan has a methane cycle.

Analyzing gravity data collected by spacecraft orbiting other worlds reveals groundbreaking insights about planetary structures without having to land on the surface.

Using archival data from the mission, launched in 1989, researchers have uncovered new evidence that tectonic activity may be deforming the planet’s surface.

Assembled from 6 overlapping WATSON images using MS-ICE.

The WATSON camera is mounted on the turret of rover's 2 meter long robotic arm.

A wider view can be assembled, once all the images are returned to Earth.

The images were acquired on sol 1500 (May 10, 2025)

Credits: NASA/JPL-Caltech/MSSS

Part of a Soviet spacecraft is expected to crash back down to Earth this weekend, with experts still unsure of where it will land.

Kosmos 482 was launched in March 1972 on a Soyuz rocket a few days after the Venera 8 atmospheric probe, and was thought to have a similar purpose. Intended to reach Venus, it failed to escape low Earth orbit and instead broke into four pieces.

Now, Kosmos 482’s lander probe is expected to come down to Earth with a bump. Marek Ziebart, professor of space geodesy at University College London, said the situation was unusual, noting de-orbited satellites tended to burn up in the planet’s atmosphere owing to drag.

However, that is unlikely to be the case for Kosmos 482 – a spacecraft that was designed to withstand Venus’s extreme conditions, such as its acidic atmosphere and extreme heat. “Anything we try to send Venus has to be armour plated,” said Ziebart.

It is not the first part of Kosmos 482 to do so: some components landed in New Zealand soon after the launch. According to Nasa, the lander probe contained a heat shield and a parachute to help it land. However, experts said these may have been compromised over time.

While the altitude of Kosmos 482 has gradually decreased, quite when it will crash to Earth remains unclear. Nasa said it was expected to re-enter Earth’s atmosphere some time from 9 to 10 May.

Journey 1.5 billion kilometres to Saturn's most bewildering moon: Iapetus. This world of stark contrasts features a divided landscape where light battles darkness, while a colossal mountain range encircles its equator, towering higher than Mount Everest. This celestial trickster defies explanation, vanishing before astronomers' eyes, only to reappear like cosmic sleight of hand. As we explore this enigmatic moon, what shocking truths about our solar system's violent birth might finally be revealed?

A major part of NASA's nearly complete Nancy Grace Roman Space Telescope just passed a lengthy thermal test to ensure it will function properly in the space environment.

"This milestone tees us up to attach the flight solar array sun shield to the outer barrel assembly and deployable aperture cover, which we'll begin this month," said Jack Marshall, who leads integration and testing for these elements at NASA's Goddard Space Flight Center in Greenbelt, Maryland. "Then we'll complete the remaining environmental tests for the flight assembly before moving on to connect Roman's two major assemblies and run the full observatory through testing, and then we'll be ready to launch."

Prior to this thermal testing, technicians integrated Roman's deployable aperture cover, a visor-like sunshade, into the outer barrel assembly, which will house the telescope and instruments, in January, then added test solar panels in March. They moved this whole structure into the Space Environment Simulator test chamber at NASA Goddard in April.