Astronauts on the Fram2 mission took the first medical X-rays while in orbit. MIT Associate Professor Lonnie Petersen explains how these images can help enable safe and healthy longer-term missions in space.

Damage to the genetic material of mitochondria—the mitochondrial DNA or mtDNA for short—can lead to diseases such as Parkinson’s, Alzheimer’s, amyotrophic lateral sclerosis (ALS), cardiovascular diseases and type 2 diabetes. Such damage also speeds up the aging process. However, the cells are normally capable of identifying such damage and reacting.

Scientists from University Hospital Düsseldorf and HHU have—in collaboration with the University of Cologne and the Center for Molecular Medicine Cologne (CMMC)—discovered a mechanism which protects and repairs the mitochondria. The research team, headed by Professor Pla-Martín from the Institute of Biochemistry and Molecular Biology I at HHU, has identified a specialized recycling system, which cells activate when they identify damage to the mtDNA.

According to the authors in Science Advances, this mechanism relies on a protein complex known as retromer and the lysosomes—cell organelles containing digestive enzymes. These special cellular compartments act like recycling centers, eliminating the damaged genetic material.

That’s because the candidate, whom the firm has since dubbed “Ivan X,” was a scammer using deepfake software and other generative AI tools in a bid to get hired by the tech company, said Pindrop CEO and co-founder Vijay Balasubramaniyan.

“Gen AI has blurred the line between what it is to be human and what it means to be machine,” Balasubramaniyan said. “What we’re seeing is that individuals are using these fake identities and fake faces and fake voices to secure employment, even sometimes going so far as doing a face swap with another individual who shows up for the job.”

Companies have long fought off attacks from hackers hoping to exploit vulnerabilities in their software, employees or vendors. Now, another threat has emerged: Job candidates who aren’t who they say they are, wielding AI tools to fabricate photo IDs, generate employment histories and provide answers during interviews.

Amazon has upgraded its AI video model, Nova Reel, with the ability to generate videos up to two minutes in length.

Nova Reel, announced in December 2024, was Amazon’s first foray into the generative video space. It competes with models from OpenAI, Google, and others in what’s fast becoming a crowded market.

The latest Nova Reel, Nova Reel 1.1, can generate “multi-shot” videos with “consistent style” across shots, explained AWS developer advocate Elizabeth Fuentes in a blog post. Users can provide a prompt up to 4,000 characters long to generate up to a two-minute video composed of six-second shots.

COLORADO SPRINGS — The U.S. Space Force is transferring the launch of a GPS satellite from United Launch Alliance (ULA) to SpaceX in an effort to reduce a backlog of satellites waiting in storage.

The GPS III SV-08 satellite, the eighth in the GPS III constellation, is now scheduled to launch no earlier than late May aboard a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station, Florida, the Space Systems Command announced April 7.

This marks the second time in recent months that the Space Force has reassigned a GPS launch from ULA to SpaceX. Last year, the GPS III SV-07 satellite was moved from a planned ULA Vulcan rocket launch in late 2025 to a SpaceX Falcon 9, which successfully launched on December 16 in a mission called Rapid Response Trailblazer.

Volvo’s hydrogen-powered engine trucks are reshaping transportation with clean energy solutions. Discover how hydrogen is driving a greener, efficient future.

An often-spouted complaint about public infrastructure projects is how long they take to complete. California High-Speed Rail, a perennial punching bag, is slated to get its initial operating segment running by 2031 at the earliest. A recent project in Japan flipped that notion on its head. The West Japan Railway Company, also known as JR West, replaced an entire station with 3D-printed prefabricated pieces in under three hours last week. The company also claims the construction costs were half that of reinforced concrete.

JR West used this new construction method to replace Hatsushima Station, a small wooden station built in 1949 and served less than 400 passengers per day. The company waited for an overnight lull in the schedule, then quickly sent its workers into action. The new station was pieced together with four hallow 3D-printed mortar pieces, according to the Japan Times. At the work site, the pieces were filled with rebar and concrete to provide the same earthquake resistance as traditionally built stations. Despite the blazing fast construction time, JR West aims to open the new station in July.

A new method called vdW squeezing enables the creation of stable, atomically thin 2D metals, opening doors to advanced devices and fundamental discoveries in materials science. Since the discovery of graphene in 2004, research into two-dimensional (2D) materials has advanced rapidly, opening new

Study found that magnetic order of chromium sulfide bromide can be turned on or off—like a switch—by changing the temperature.

Advances recognized by science’s most lucrative awards include Large Hadron Collider experiments and groundbreaking weight-loss treatments.