Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Science / Space

In the heart of a new dark matter detector, LUX-ZEPLIN (LZ), a 5-foot-tall detector filled with 10 tons of liquid xenon, will search for hypothetical dark matter particles to produce flashes of light as they traverse the detector.

New Generation of Dark Matter Experiments Gear Up to Search for Elusive Particle

Deep underground, in abandoned gold and nickel mines, vats of liquid xenon and silicon germanium crystals will be tuned to detect invisible matter

The telescope will decommission on January 30 after uncovering the some of the deepest corners of the universe.

Spitzer Space Telescope Ends Operations After Scanning the Cosmos for 16 Years

Looking back on the groundbreaking discoveries of NASA’s little telescope that could

2020 is shaping up to be a great year for sky watching.

Ten Celestial Events You Don’t Want to Miss in 2020

Whether you are a telescope enthusiast or just want to step outside to enjoy the night sky, these are the phenomena to look out for this year

Dust-rich outflows of evolved stars similar to the pictured Egg Nebula are plausible sources of the large presolar silicon carbide grains found in meteorites like Murchison.

Meteorite Grains Are the Oldest Known Solid Material on Earth

The oldest dust sample, perhaps 7 billion years old, predates the formation of our planet and the sun

The hypothetical dream spacecraft flies over Uranus and past its rings and moons, too.

Astronomers Prepare a Mission Concept to Explore the Ice Giant Planets

NASA scientists imagined some innovative technologies that could enhance a future mission to Uranus or Neptune

These are ten of the biggest strides made by scientists in the last ten years.

The Top Ten Scientific Discoveries of the Decade

Breakthroughs include measuring the true nature of the universe, finding new species of human ancestors, and unlocking new ways to fight disease

Scientists seeking extraterrestrial life in the universe (above: a radio observatory in New Mexico) seek the answer to what is called the Fermi paradox: “Where is everybody?”

If Aliens Existed Elsewhere in the Universe, How Would They Behave?

In a new offering from Smithsonian Books, James Trefil and Michael Summers explore the life forms that might exist on a dizzying array of exoplanets

The North Island brown kiwi is a flightless, nocturnal bird that lays the biggest egg relative to its body size.

What Bird Lays the Biggest Eggs Compared to Its Body Size? Where Does ‘Lame Duck’ Come From? And More Questions From Our Readers

You’ve got question. We’ve got experts

The Ten Best Science Books of 2019

New titles explore the workings of the human body, the lives of animals big and small, the past and future of planet earth and how it’s all connected

In the hubbub after the meteorite strike, Ann Hodges became a minor celebrity. Photographs of her bruise and the damage to her home appeared in Life magazine in an article entitled, “A Big Bruiser From the Sky.”

In 1954, an Extraterrestrial Bruiser Shocked This Alabama Woman

Ann Hodges remains the only human known to have been injured by direct impact of a meteorite

An artist's concept showing a "naked-eye" view of a GRB up close. Observations suggest that material is shot outward in a two-component jet (white and green beams). Credit: NASA/Swift/Mary Pat Hrybyk-Keith and John Jones

Astronomers Detect Record-Breaking Gamma Ray Bursts From Colossal Explosion in Space

A powerful outburst in a distant galaxy produced photons with high enough energies to be detected by ground-based telescopes for the first time

Left to right, top to bottom: Sheperd Doeleman, Michael Johnson, Sandra Bustamante, Jonathan Weintroub, James Moran, Aleks Popstefanija, Daniel Palumbo; Feryal Ozel, Joseph Farah, Neil Erickson, Peter Galison, Katie Bouman, Dominic Pesce, Garrett K. Keating; Nimesh Patel, Alexander Raymond, Kazinori Akiyama, Vernon Fath, Mark Gurwell, Gopal Narayanan, Peter Schloerb

American Ingenuity Awards

Meet the Global Team That Captured the First Image of a Black Hole

Never before had scientists seen the phenomenon until they rallied colleagues around the world to view a galaxy far, far away

After two eclipse expeditions confirmed Einstein's theory of general relativity, the scientist became an international celebrity.

One Hundred Years Ago, Einstein’s Theory of General Relativity Baffled the Press and the Public

Few people claimed to fully understand it, but the esoteric theory still managed to spark the public’s imagination

Eileen Collins in space in 1995, when she became the first woman to pilot a space shuttle.

What It Was Like to Become the First Woman to Pilot and Command a Space Shuttle

Eileen Collins talked to Smithsonian about her career in the Air Force and NASA, women in aerospace and more

Illustration of a hot Jupiter planet in the Messier 67 star cluster. Hot Jupiters are so named because of their close proximity — usually just a few million miles — to their star, which drives up temperatures and can puff out the planets.

What Astronomers Can Learn From Hot Jupiters, the Scorching Giant Planets of the Galaxy

Many of the planets that are roughly the size of Jupiter orbit right next to their stars, burning at thousands of degrees

Scientists at the University of Central Florida have modeled a path toward self-sufficiency for one million settlers of Mars over the course of 100 Earth years.

What Will Humans Eat on Mars?

Planetary scientist Kevin Cannon talks about the logistics of feeding a population of one million on the Red Planet

Charlotte Moore Sitterly made huge strides in our understanding of how atoms are structured and what stars, especially our sun, are made of.

Women Who Shaped History

How Charlotte Moore Sitterly Wrote The Encyclopedia of Starlight

The “world’s most honored woman astrophysicist” worked tirelessly for decades to measure the makeup of the sun and the stars

An artist's illustration of the planet K2-18b and another planet, K2-18c, that orbits closer to the parent star. Both planets orbit a red dwarf about 110 light-years from Earth in the constellation Leo.

Water Vapor Detected in the Atmosphere of an Exoplanet in the Habitable Zone

The planet K2-18b, about 110 light-years away, could have swirling clouds and falling rains of liquid water droplets

A natural color view of Titan and Saturn taken by NASA's Cassini spacecraft wide-angle camera on May 6, 2012, at a distance of approximately 483,000 miles (778,000 kilometers) from Titan.

Dragonfly Spacecraft to Scour the Sands of Titan for the Chemistry of Life

The NASA rotorcraft, resembling a large quadcopter drone, will fly through the orange clouds of the ocean moon in the outer solar system

In the image captured by Cassini, the rings are illuminated both by direct sunlight and by light reflected off Saturn's cloud tops.

Saturn Could Lose Its Rings in Less Than 100 Million Years

Recent discoveries suggest that the planet’s distinctive feature may be gone in the cosmic blink of an eye

Page 9 of 40