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Studies on animals suggest why Omicron is less severe: It spares the lungs.

How far have you traveled in the past year?

E.O. Wilson, a Pioneer of Evolutionary Biology, Dies at 92

Fauci warns against complacency amid data that Omicron causes milder illness

Astronomers have a lot to be anxious about.

Why the telescope is launching from French Guiana.

The Webb’s Big Bang science.

A Christmas morning launch.

NASA’s James Webb Space Telescope is ‘go’ for launch in French Guiana

How to Watch the James Webb Space Telescope Launch

A dinosaur embryo, exceptionally preserved in an egg about to hatch, reveals links to birds

In a Boston Court, a Harsh Spotlight Falls on a Heavyweight of Science

NASA releases new photos of Jupiter — and a recording of its moon that sounds like R2-D2

At Last, a True Millipede That Actually Has 1,000 Legs or More

A Hair-Raising Hypothesis About Rodent Hair

NASA's Parker Solar Probe touches the sun for the first time

NASA's Parker Solar Probe touches the sun for the first time

How much material from space enters the Earth’s atmosphere on an average day?

What It Takes to Understand a Variant

Unraveling How an Extinct Mollusk Got Its Strange Shell

How Do You Tell the World That Doomsday Has Arrived?

Hoping for a Dog Phone? You May Have a Long Wait.

New NASA Telescope Will Provide X-Ray Views of the Universe

What are a coronavirus’s genes made of?

New Covid Pills Offer Hope as Omicron Looms

Video shows rare total solar eclipse

Video shows rare total solar eclipse

NASA Introduces Class of 10 New Astronaut Candidates

Eight wolves have been poisoned in Oregon, stumping police and renewing calls for more protections

World’s strongest ocean current is speeding up — and humans are to blame

Dr. Sherif R. Zaki, Acclaimed Disease Detective, Dies at 65

How Bat Moms Teach Bat Pups Their Sense of Direction

Omicron possibly more infectious because it shares genetic code with common cold coronavirus, study says

Melting Arctic Is a Bonanza for the Ocean’s Natural Born Killers

Iron World Appears to Be Lightest Exoplanet Ever Detected

Prints Long Thought to Be Bear Tracks May Have Been Made by Human Ancestor

This Dinosaur Found in Chile Had a Battle Ax for a Tail

This Dinosaur Found in Chile Had a Battle Ax for a Tail

The Coronavirus in a Tiny Drop

Trust in Science and Scientists Increased Globally, Poll Finds

NASA Delays Spacewalk, Citing Space Debris Threat to Astronauts

NASA Delays Spacewalk, Citing Space Debris Threat to Astronauts

Which of these places in the solar system contains the least amount of mass?

Online exhibit adds up the history of mathematics

Online exhibit adds up the history of mathematics

Sky Watch: See Venus, Saturn and Jupiter fall into line

Sky Watch: See Venus, Saturn and Jupiter fall into line

This Fire-Loving Fungus Eats Charcoal, if It Must

This Oceans Invaded Its Neighbor Earlier Than Anyone Thought

Merck says its antiviral pill is less effective in a final analysis.