Space news stories

As described in a study published in the Astrophysical Journal Letters, researchers have collected further evidence of 2024 PT5 being of local origin: It appears to be composed of rock broken off from the moon’s surface and ejected into space after a large impact.

Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New findings risk turning the tension into a crisis, scientists say.

NASA’s Curiosity Rover has been exploring Mars since 2012 and more recently has found evidence of ice-free ancient ponds and lakes on the surface. The rover found small undulations like those seen in sandy lakebeds on Earth.

On the evening of 28 February 2025, all seven of the other planets in the Solar System will appear in the night sky at the same time, with Saturn, Mercury, Neptune, Venus, Uranus, Jupiter, and Mars all lining up in a neat row – a magnificent sky feast for the eyes known as a great planetary alignment.

In the distant space out beyond the orbit of Jupiter lurks a strange object. Its name is Chiron, a type of outer Solar System body known as a centaur. But even among its fellow centaurs, Chiron is special – and new observations from JWST reveal how truly Chiron is like nothing else we’ve ever seen.

There might not be a mysterious ‘dark’ force accelerating the expansion of the Universe after all. The truth could be much stranger – bubbles of space where time passes at drastically different rates.

Taking its name from a now obsolete constellation known as Quadrans Muralis, the event is best viewed in the northern hemisphere, with the meteors appearing to radiate from the constellation Boötes, which is found near the collection of stars often dubbed the Plough or the Big Dipper

According to a new analysis by researchers from the US, France, and Germany, Earth’s constant companion may have formed as early as 4.53 billion years ago – hundreds of millions of years earlier than previous estimates. The research has been published in Nature.

It’s a favourite adage of science bores (myself included): sharks are older than the rings of Saturn. But, according to a study in Nature Geoscience, it might not be true. Saturn’s rings could be a lot older than previously thought.

Image from Wiki Commons

The team’s detection method, which identified 138 space rocks ranging from bus- to stadium-sized, could aid in tracking potential asteroid impactors. In a paper appearing in the journal Nature, the researchers report that they have used their approach to detect more than 100 new decameter asteroids in the main asteroid belt.

The Earth was struck by 2 huge asteroids 35 million years ago – but it managed to shrug off the impacts, according to a new study. The study, published in Communications Earth & Environment finds that – other than 2 massive craters – there’s little evidence of long-term effects caused by the asteroids.

Earth and Mars are the only two rocky planets in the Solar System to have moons. Based on lunar rock samples and computer simulations, we are fairly certain that our Moon is the result of an early collision between Earth and a Mars-sized protoplanet called Theia.

Evidence is growing that Mars was once sloshy and wet, draped with lakes and oceans, which lapped at shorelines and deposited sediments that are, even as you read these words, being scrutinized by robots rolling across the now dry and dusty surface.

The analysis, which looked at nearly 6 million galaxies and quasars spanning 11 billion years of cosmic time, found that even at colossal scales, the force of gravity behaves as predicted by Albert Einstein’s theory of general relativity.

The discovery, led by astronomer Alexia Lopez of the University of Central Lancashire, was presented at the 243rd meeting of the American Astronomical Society in January, and has been published in the Journal of Cosmology and Astroparticle Physics.

The largest and oldest-known impact site on the moon is the South Pole-Aitken basin. Thanks to new research, scientists have dated the basin to the period between 4.32 and 4.33 billion years ago.