Ten newly discovered species of trilobites, hidden for 490 million years in a little-studied part of Thailand, could be the missing pieces in an intricate puzzle of ancient world geography. Trilobites are extinct sea creatures with half-moon-shaped heads that breathed...

Giant gas planets can be agents of chaos, ensuring nothing lives on their Earth-like neighbors around other stars. New studies show, in some planetary systems, the giants tend to kick smaller planets out of orbit and wreak havoc on their...

New research confirms fracking causes slow, small earthquakes or tremors, whose origin was previously a mystery to scientists. The tremors are produced by the same processes that could create large, damaging earthquakes. Fracking is the high-pressure injection of fluids underground...

Scientists have worked out how one unusual species of trilobite — an ancient, sea-dwelling relative of spiders and lobsters — was able to defend itself against predators and survive a bumpy ride as Earth’s oxygen levels fluctuated. The seas were...

Anthropogenic aerosols — aerosols originating from human activity — and greenhouse gases, or GHGs, have helped modulate the storage and distribution of heat in oceans since the industrial age. Isolating and quantifying the effects of both forcers using coupled climate...

Imagine an Earth-sized planet that’s not at all Earth-like. Half this world is locked in permanent daytime, the other half in permanent night, and it’s carpeted with active volcanoes. Astronomers have discovered that planet. The planet, named LP 791-18d, orbits...

Even without body parts that allowed for movement, new research shows — for the first time — that some of Earth’s earliest animals managed to be picky about where they lived. These creatures from the Ediacaran Period, roughly 550 million...

Land where a UC Riverside paleontology professor unearthed whole communities of Earth’s oldest animals is opening today to the public as a new national park in the Australian Outback. Nilpena Ediacara National Park harbors the richest collection on Earth of...