Science News: Recent scientific discoveries and expert analysis

A spiral galaxy known as NGC 4945 exhibits powerful winds of material blowing from the supermassive black hole located at its core in a new photo taken by the Very Large Telescope in Chile.

Physicists have proposed a new model of space-time that may provide the 'first observational evidence supporting string theory,' a new preprint suggests.

The new DGX machines are portable but powerful enough to drive complex AI modules and research, with processing capabilities previously only available in data centers.

A new full-body reconstruction depicts a warrior wearing armor and holding weapons, all of which were found in a 4,000-year-old burial in Siberia.

The security system that underlies the internet makes use of a curious fact: You can broadcast part of your encryption to make your information much more secure.

Science news this week April 5, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

What are the blue blobs washing up on California beaches? What to know about these strange sea creatures.

Huge outpourings of magma accompanied the split between South America and Africa 135 million years ago.

The female sex hormone estrogen, along with progesterone, appears to underlie a fundamental difference in how males and females process pain, a mouse study finds.

The sounding rockets released vapor tracers and pressure sensors at different altitudes across central and northern Alaska during a sudden auroral substorm.

Nitisinone, a drug that is already used to treat two genetic diseases, could be repurposed to control the spread of malaria, according to new research.

Roman dead were often cremated, so the ancient mass grave in Vienna is a rare find.

A man in his early 20s received a transplant of his own sperm-producing stem cells, which had been frozen since his childhood, in an attempt to regain fertility. Doctors are waiting to see if the treatment works.

Researchers analyzed the ancient DNA of two mummies from what is now Libya to learn about people who lived in the "Green Sahara" 7,000 years ago.

SpaceX's Starship has been awarded a NASA contract that will allow it to be considered for future missions. However, recent explosive tests have shown the supersized spacecraft is still far from mission-ready.

A roughly 100-year-old western Santa Cruz Galápagos tortoise has become a mom for the first time after reproducing with a male of the same age at Philadelphia Zoo.

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.

The colorful swirls and stripes that characterize China's Rainbow Mountains would have remained hidden without the epic tectonic collision that created the Himalayas.

A new view of the Helix Nebula reveals a dying white dwarf star at the nebula's center. This star's violent eating habits could be responsible for strange X-ray emissions in the region.

An ichthyosaur was pregnant with twins when she died, a fossil from Cretaceous Chile reveals.