Astronomy

3D printing is going to be a critical technology in space exploration, both for its ability to create almost any object, but also because it can utilize in-situ resources, at least in part. However, the more of those space resources are used in a print, the more the mechanical properties change from that on Earth, leading to problems with tensile or compressive strength. But a new paper from researchers at Concordia University hit a new milestone of how much lunar regolith can be used in a mixed feedstock for additive manufacturing, making it possible to use even more locally sourced material, and saving more launch cost, than ever before.

A mysterious visitor from another star system is putting on a spectacular show as it streaks through our Solar System, shedding tons of ancient dust and revealing secrets from the depths of interstellar space. Using the Hubble Space Telescope, a team of astronomers have captured unprecedented details of 3I/ATLAS—only the third confirmed object from beyond our Solar System as it awakens under our Sun's warmth, offering a rare glimpse into alien worlds billions of kilometres away.

Astronomers from Brazil and the UK have detected what could be the most massive black hole ever found. It's about 36 billion solar masses, which is a stunning 10,000 times more massive than Sagittarius A*, the monstrous supermassive black hole at the heart of the Milky Way. This behemoth is about 5 billion light-years away.

White dwarfs are the stellar remnants left behind by stars after they run out of hydrogen and cease fusion. Only a small number of them are "high-mass white dwarfs" more massive than the Sun. New research indicates that these massive white dwarfs are the result of mergers.

It’s that time of year once again. August sees warm nights, with late summer campers out awaiting that ‘Old Faithful’ of annual meteor showers: the August Perseids. While 2025 also sees the shower peaking right around Full Moon, don’t despair; with a little bit of planning and patience, you can still catch this shower at its best.

An unrelated pair of people buried in cemeteries in 7th-century Britain probably had grandparents from West Africa

An unrelated pair of people buried in cemeteries in 7th-century Britain probably had grandparents from West Africa

What's that green streak in front of the Andromeda galaxy?

To celebrate Alien: Earth landing on Hulu, we asked a zoologist if any of the Xenomorph's infamous characteristics occur in the natural world

The company is also looking at using its mothership aircraft that releases spacecraft at high altitude as a carrier platform for other customers.

Studies show that writing or expressing what we are feeling can help adults mentally and physically. Kids are no different

With just one year until the total solar eclipse of 2026, we take a look at everything you need to know for the ultimate eclipse adventure.

An extinct group of humans that were once widespread in Asia don’t have an official species name – part of the reason is archaeological, and part is a legal question

An extinct group of humans that were once widespread in Asia don’t have an official species name – part of the reason is archaeological, and part is a legal question

Marine protected areas cover more than 8% of the world's oceans today, but they can get a bad rap as being protected on paper only.

Researchers are alarmed that an expansive executive order issued by President Donald Trump might upend a long-standing tradition of peer-review for grants

The textbooks say our ancestors lost the ability to make vitamin C because we didn't need it, but the loss may have protected us from some parasites

The textbooks say our ancestors lost the ability to make vitamin C because we didn't need it, but the loss may have protected us from some parasites

The annual Perseid meteor shower will peak overnight Tuesday (Aug. 12), and you can enjoy the event live online with the Virtual Telescope Project's webcast.

Alien: Earth's two-episode premiere is released today and you can watch it anywhere with our exclusive 79% off NordVPN deal, but you'll have to hurry.