Exploring Titan’s icy hydrocarbon cycle

Though wildly different in so many ways, Earth and Saturn’s moon Titan have something important in common. Among all the objects in the solar system, they’re the only two with liquids on their surfaces. There are parallels in how the liquids move in cycles on both worlds and a new mission proposal outlines how we can understand Titan better by studying these parallel processes.

Studying Uranian moons using passive radar sounding

How can Uranus be used to indirectly study its moons and identify if they possess subsurface oceans? This is what a recent study presented at the 56th Lunar and Planetary Science Conference hopes to address as a team of scientists investigated using passive radar sounding methods from Uranus to study its five largest moons: Miranda, Ariel, Umbriel, Titania, and Oberon. This study has the potential to help researchers better understand the formation and evolution of Uranus and its largest moons despite a spacecraft not currently visiting Uranus.

Solar cells made of moon dust could power future space exploration

The same dirt that clings to astronauts’ boots may one day keep their lights on. In a study published in Device, researchers created solar cells made out of simulated moon dust. The cells convert sunlight into energy efficiently, withstand radiation damage, and mitigate the need for transporting heavy materials into space, offering a potential solution to one of space exploration’s biggest challenges: reliable energy sources.

Ultralight dark matter could explain early black hole formation

A black hole is a region of space where gravity is so strong that nothing, not even light, can escape. There are two main types of black hole; stellar mass and supermassive black holes, and they differ in size, formation, and impact on their host galaxy. Stellar mass black holes, a few to dozens of times the mass of the sun, form from collapsing massive stars. Supermassive black holes, on the other hand, are millions to billions of times more massive and tend to live in the center of galaxies and grow through accretion and mergers.

How space law aims to regulate ‘space junk’ and protect Earth

While life on Earth has been dramatic enough lately, there’s also been an unusual amount of news from space in the early months of 2025. So far, debris from SpaceX and Blue Origin rockets has landed in locations including the Bahamas, Florida, Poland, and Turks and Caicos and caused flight delays at airports in Florida. On February 18, NASA estimated that asteroid 2024 YR4 had a 3.1% chance of hitting Earth in 2032—the highest probability of impact ever recorded by the agency—although they later reduced that estimate to 0.004%.