The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

Researchers were unsure whether alpha particles would aid or hinder fusion. Simulations suggest they help, by dampening ...

A fossil that has puzzled scientists for over 150 years is possibly the largest scorpion known to exist.

An imaging study found early signs of coronary artery disease in people in Canada breathing air that regulators consider ...

A newly-described dinosaur, Jian changmaensis, may have glided through northwestern China about 120 million years ago, ...

At least a dozen animals have been found with the flesh-eating maggots. It could take more than a year to eradicate the ...

Detached tissues from the sea cucumber's tube feet and feeding tentacles survived for more than three years, a find that ...

Vast permafrost beneath the upper slopes of Peru’s tallest volcano could become a regional water source as glaciers in the ...

Earth may be our beloved home planet, but Mars exudes main character energy.

The wave's round trip to Earth's core set off a fault slip along Japan's plate boundaries, revealing a seismic hazard ...

Three species that lived about 308 million years ago challenge the idea that the first land vertebrates underwent ...

A study in mice suggests other mammals, including humans, can produce the painkiller in their bodies.