Scientists are trying to figure out if time travel is even theoretically possible. If it is, it looks like it would take a whole lot more knowledge and resources than humans have now to do it.

Plants have multiple fine-tuned systems to deal with varying day lengths, research finds. Could that help in developing new crop varieties?

New research investigates how sunflowers "see" and follow the sun as it moves across the sky.

A newly identified process could explain a variety of natural phenomena and enable new approaches to desalination.

Using multiple observatories, astronomers directly detect tellurium in two merging neutron stars.

Eating habits in winter may be better for our metabolic health than eating habits in summer, research with mice indicates.

An astronomer explains why space looks so dark despite containing 200 billion trillion stars.

Three scientists won the 2023 Nobel Prize in physics for their work developing methods to shoot laser pulses that only last an attosecond, or a mind-bogglingly tiny fraction of a second.

Some birds that live year round in big cities have eyes that are about 5% smaller. Researchers say bright lights may be the cause.