Asteroid deflection could save Earth, or accidentally doom it, depending on where we aim the impact.

Scientists caution that asteroid deflection must be precise, as striking the wrong spot risks sending it through a gravitational keyhole that sets up a future collision with Earth. Using lessons from NASA’s DART mission, researchers are developing probability maps to guide safer impact strategies.

Selecting the right spot to smash a spacecraft into the surface of a hazardous asteroid to deflect it must be done with great care, according to new research presented at the EPSC-DPS2025 Joint Meeting this week in Helsinki...

University of Oxford-led research finds low-dose rapamycin functions as a genomic protector in aging human immune cells, lowering DNA damage.

The mechanistic target of rapamycin (mTOR) is a central signaling pathway that regulates and coordinates cell growth, metabolism, and survival in response to environmental cues. It helps cells integrate signals from growth factors, nutrients, and stress to control whether they are in an anabolic (building up) or catabolic (breaking down) state.

Aging immune systems accumulate DNA damage linked to immunosenescence. Rapamycin is a drug that inhibits the mTOR pathway...

A team at the University of Florida has developed a new kind of computer chip that uses light with electricity to perform one of the most power-intensive parts of artificial intelligence—image recognition and similar pattern-finding tasks. Using light dramatically cuts the power needed to perform these tasks, with efficiency 10 or even 100 times that of current chips performing the same calculations. Using this approach could help rein in the enormous demand for electricity that is straining power grids while enabling higher performance AI models and systems.

Artificial intelligence (AI) systems are increasingly central to technology, powering ...

University of Bristol astrophysicists are helping shed new light on an Earth-sized exoplanet 40 light years away where liquid water in the form of a global ocean or icy expanse might exist on its surf...