When eggs are fertilized, they release a shower of zinc and manganese that may protect against multiple sperm penetrating the egg.

Here's where to watch Jeff Bezos and three other crew members go to space on Blue Origin's New Shepard rocket.

Former Amazon CEO Jeff Bezos is headed to space on July 20 aboard Blue Origin's New Shepard rocket. Here's how to watch the launch online.

Oliver Daemen, 18, will accompany Jeff Bezos to space on July 20 aboard New Shepard.

NASA scientists have mapped the dynamic, ever-shifting lakes beneath Antarctica in more detail than ever before.

Here are our favorite stories about sharks, from an ancient Greenland shark to a behemoth "queen of the ocean."

The planet has been losing 33,000 square miles (87,000 square kilometers) of ice coverage each year since 1979.

Fool's gold, or pyrite, sometimes contains tiny threads of real gold, new research finds.

A new brittle star found in the South Pacific is a living relic of the Jurassic.

A severe drought going into the summer is setting up the western United States for water rationing and nasty wildfires.

Most countries that host laboratories dealing with the deadliest pathogens score low on measures of biosecurity and biosafety.

Only one week after astronomers noticed a moving object in the sky, they've identified it as a long-periodicity comet from the Oort Cloud.

A gorgeous new image of Westerlund 2 shows a birthplace of new stars in the Milky Way in unprecedented detail.

These Osmo kits can turn screen time into tactile time, helping kids to learn about numbers, shapes, coding and more. And right now, Amazon has several great deals to get you started.

Venomous spiders prey upon snakes many times their size, a new study finds — and often emerge victorious against snakes as venomous as they are.

From the Goliath birdeater tarantula to black widows, spiders are not shy around deadly snakes, often taking down the juveniles and feasting on their meaty bodies for days.

Tegu's high-quality magnetic blocks are up to 40% on Prime Day.

From chemistry experiments to Earth science explorations, these Prime Day discounts offer a number of science-minded activities.

Temperatures over 120 degrees Fahrenheit are part of a "heat dome" scorching the western United States.

A set of sinuous lines found in the Thar Desert of India may be the largest geoglyph ever discovered.

Speaking on the BBC show 'Panorama,' Microsoft's Brad Smith warned that unless checks are put in place, artificial intelligence could lead to a dystopian future