Trump Calls on Senator Jon Tester To Resign
The Democratic senator represents the state of Montana and is up for re-election this fall.
Bill Gates Warns of Pandemic Disease Threat
Gates compared the risk of a pandemic disease outbreak to the challenges of preparing for a massive war.
NASA Cancels Rover Meant to Mine Water From the Moon
NASA says some of the rover's instruments will still find their way to the Moon.
Mars 2020 Rover Heat Shield Flaw Won't Stop Lander
The lander does use essentially the same shield, but its equipment has been double-checked.
A Quarter of the World's Beaches Are Shrinking
Almost a third of coastlines around the world not covered in ice are sandy beaches.
NASA to Partner With Europeans to Bring a Piece of Mars
Right now, scientists only have two options for analyzing Martian material directly, and both have serious downsides.
Scientists Want to Understand How Satellites Collide
Satellites have collided only four times in the past 30 years, making it difficult to form generalizations about cause.
Asteroid Impacts Can Carry Water, Experiments Suggest
The new experiment relied on a cannon that can shoot marbles at speeds of more than 11,000 miles per hour.
Ancient Footprints Show Humans and Giant Sloths Met
Scientists now believe humans stalked and then confronted a giant ground sloth thousands of years ago in New Mexico.
Saturn's Bulk May Be Key to Jupiter's Moons
Ganymede is bigger than the planet Mercury, and all three of the others outsize ex-planet Pluto, making their formation a huge mystery.
NASA New Spacecraft Wall-E and Eva Are Headed to Mars
Wall-E and Eva were nicknamed in honor of characters from the Pixar film, thanks to the scene in which Wall-E uses a fire extinguisher to dance through space, which mimics how these two real spacecraft will move.
Gravity Could Trap Alien Civilizations on Super-Earths
Stronger gravity requires stronger—and pricier—rockets to overcome.
How Do You Mine an Asteroid?
It's one thing for a business plan to aim for the stars, but it's another thing entirely for a country to pin their dreams on reaching asteroids.
Mammals Have Been Shrinking for Thousands of Years
"You haven't lived until you've put your arms around a mammoth femur trying to measure it," Smith said.
What Is an Exoplanet? NASA Explores Alien Worlds
To date, astronomers have confirmed 3,717 exoplanets—all in less than three decades.
Mars's Two Tiny Moons Were Born During a Collision
Scientists may have been thinking about moons formed by impacts across the solar system in the wrong way.
New Fossil Whale Discoveries Thrill Scientists
"There's always something new being discovered, Velez-Juarbe said. "The discoveries are coming faster than we can include them in our own work."
A Woman Should Be the First Person on Mars
One small step for man, zero small steps for women (so far).
New Dinosaurs Evolved After Huge Global Climate Change
Early dinosaurs were at the mercy of weather patterns unfolding across the supercontinent Pangaea.
New Telescope Can't Tell How Likely Alien Life Is
This is what NASA's brand new telescope can and can't learn about exoplanets.
Saltwater Lakes Hidden Beneath Glaciers May Mimic Moons
There are about 400 subglacial lakes around the world, but these are the first scientists believe to be salty.
NASA Is Launching Its Next Planet-Hunting Telescope
Scientists are excited about the prospect the mission holds for new discoveries, but if you're just learning about the mission now, here's what you need to know.
Mercury in Retrograde Now, Stumping Scientists Always
"Mercury is just so weird and so exotic compared to the Moon and other terrestrial planets," Kathleen Vander Kaaden, a planetary scientist at the engineering company Jacobs Engineering Group working on a contract at the NASA Johnson Space Center in Texas, told Newsweek.
Japan Volcano Erupts With Hot Rocks, Lightning
The Japanese Meteorological Agency has warnings out to keep people away from the crater itself, but remotely operated news cameras can ignore them.
Ancient Star Cluster Is 7,800 Light-Years Away
The cluster of stars is practically as old as the universe itself.
Ingredient of Life Might Not Exist Across Universe
"I think people didn't really think about [phosphorus]" in comparison to ingredients like carbon and water, Greaves told Newsweek. "It's kind of a nice opportunity to go, 'Look, this matters and it's not super hard.'"
Neanderthals Had Large Noses to Breathe More Air
A bad cold can show you the value of a good nose.
The Solar Eclipse Created a Giant Wave
This is the second type of atmospheric wave scientists have identified using data from the August eclipse.
Ignorance About Venus Could Mean Trouble for Exoplanets
"It's just completely bizarre that we should have two planets the same size but opposite ends of the habitability spectrum."
NASA Is Building a Supersonic Speed Plane
Flying faster than the speed of sound produces shock waves that result in a loud booming sound, but NASA hopes to turn down the volume.