NASA

The Trump administration announced Monday that it will begin imposing a 30 percent tariff on solar cells and modules imported into the United States. The tariff will decline annually over a four-year period—reaching 15 percent in year four—and the first 2.5 gigawatts of imported solar cells will be exempt from the safeguard tariff in each...

Talk about an out-of-this-world map! NASA has unveiled a stunning new clickable panoramic portrait of our home galaxy, the Milky Way. The zoomable, 360-degree view was constructed from more than two million infrared snapshots taken over the past ten years by NASA’s Spitzer Space Telescope. “If we actually printed this out, we’d need a billboard...

By Jim Urquhart for National Geographic “Mars has been flown by, orbited, smacked into, radar examined, and rocketed onto, as well as bounced upon, rolled over, shoveled, drilled into, baked, and even blasted. Still to come: Mars being stepped on.”—Buzz Aldrin In a remote stretch of Utah desert, five scientific researchers and one journalist, myself, came together this month...

Since the year of mankind’s inaugural trip to space in 1961, 341 people have crossed the celestial borders of outer space. These new-age navigators represent the pinnacle of human achievement. What is it about their daring voyages that elicit wonderment in those watching from Earth? Becoming an astronaut is a difficult, but not impossible dream. Join us for...

President Barack Obama unveiled his 2015 budget proposal Tuesday, outlining his spending and policy priorities for the upcoming year. In it, President Obama earmarked funding for both his Climate Action Plan and Climate Resiliency Fund. The budget for the U.S. Environmental Protection Agency (EPA)—the agency that released stricter fuel standards this week—represented a $309 million decrease from the current fiscal year budget. The nearly $8 billion...

Some jumbo stars commit stellar suicide in surprisingly lumpy explosions, according to a new study in Nature. Scientists led by Caltech’s Brian Grefenstette looked at Cassiopeia A, a supernova that first appeared in nighttime skies around the year 1670. The supernova’s wispy remnants rest some 11,000 light-years away from Earth, stretched across some 59 trillion miles (95 trillion...

The bright moon moves into late-night skies this week, offering backyard observers some early-evening opportunities to hunt down celestial sights ranging from a fading supernova to a giant asteroid. Last-chance supernova. For Monday, February 17, and the rest of the week, the exploding star SN 2014J will be visible in darker skies in the early evening, thanks to the...

Things are rocking right now in our own galactic neighborhood. Backyard telescope users already knew about the Cigar Galaxy, or M82, located in the Great Bear constellation, Ursa Major. Now it has two new cosmic secrets to explore. Two weeks ago a supernova—a giant exploding star—was discovered by British university students within the galaxy, which is...

Not much more than just a few pixels on the photo above, that bright dot in the twilight Martian sky is Earth, as seen by NASA’s Mars Curiosity rover. A first view of the rover’s picture of its home planet, taken from the surface of Mars, even shows Earth’s moon. And while NASA engineers say...

A newly discovered planet wobbles as it spins, astronomers say, though it’s in no danger of falling down. The planet, dubbed Kepler-413b, wobbles as it spins around on its north-south axis circling its stars. The wobbles have altered the planet’s tilt by as much as 30 degrees (the angle between the 12 o’clock and the 1...

A week before President Barack Obama’s State of the Union address, a new report says Obama could advance key measures of his Climate Action Plan with or without the cooperation of Congress. “When they believed a national situation warranted action, some past presidents interpreted their authority broadly and exercised it aggressively,” the report said. “That is the practice of presidential authority Americans...

A trip to the moon on gossamer wings? While most of us Earthlings will never get to visit other worlds, here’s your chance to fly your name, at least, on a spacecraft heading to a distant asteroid in 2016. A microchip with the names etched on it will be secured to the side of NASA’s OSIRIS-REx (Origins Spectral...

No place like home for the holidays? Two American astronauts aboard the International Space Station (ISS) will be floating outside their orbiting home on Christmas Eve.   While a Saturday space walk to repair the orbiting laboratory’s faulty cooling pump was completed ahead of schedule, water leaks still plague one space-walk spacesuit. As a result,...

Tensions are high as the astronauts aboard the International Space Station ready themselves to conduct a series of emergency spacewalks that start this weekend, ones intended to correct a critical cooling system failure. Acting much like a car’s radiator, the malfunctioning cooling pump prevents overheating of electronics and science experiments aboard the ISS. With one...