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As SpaceX Launches Dozens Of Satellites At A Time, Some Fear An Orbital Traffic Jam

By Geoff Brumfiel
A SpaceX Falcon 9 rocket lifts off Monday from Florida

SpaceX and a rival company are rushing ahead with plans for constellations of thousands of satellites, but regulators might not be ready.

(Image credit: Paul Hennessy/NurPhoto via Getty Images)

  • November 11th 2019 at 19:17

North American Skywatchers Prepare For Transit Of Mercury

Don't look at it with the naked eye, but there's a rare celestial event happening Monday morning. Mercury' is gliding between Earth and the Sun.

  • November 11th 2019 at 11:05

Skywatchers In North America Hope For Clear Skies To See Transit Of Mercury

By Scott Neuman
The planet Mercury is seen in silhouette (lower left) as it transits across the face of the sun on May 9, 2016. Another transit of Mercury — the last one for 30 years — will take place Monday.

Monday morning, the solar system's innermost planet will begin a 5.5-hour march across the disk of the sun. All you need to see it are clear skies and access to a telescope with a sun filter.

(Image credit: Bill Ingalls/AP)

  • November 10th 2019 at 13:00

Space Station Astronaut Casts Absentee Ballot From Space

Election officials in Pennsylvania set up a secure PDF so that Andrew Morgan could vote from the comfort of the International Space Station. No word on whether he got an "I voted" sticker.

  • November 6th 2019 at 11:51

Secret Air Force Space Plane Lands After More Than 2 Years In Orbit

By Scott Neuman
The U.S. Air Force

The X-37B, launched in September 2017, has returned to Earth. It was the fifth acknowledged mission for the vehicle since 2010, but details of its mission are being kept under wraps.

(Image credit: U.S. Air Force via Reuters)

  • October 28th 2019 at 11:39

Itty-Bitty Satellites Take On Big-Time Science Missions

By Joe Palca
Engineer Joel Steinkraus tests solar panels on one of two CubeSats that made up NASA

CubeSats are only about twice the size of a Rubik's Cube. Once dismissed as tools for students learning the principles of aerospace engineering, they're now being used for more sophisticated missions.

(Image credit: NASA/JPL-Caltech)

  • October 23rd 2019 at 11:01

VIDEO: 2 U.S. Astronauts Venture Out For 1st All-Female Spacewalk

By Scott Neuman
Astronauts Christina Koch and Jessica Meir conducted some much-needed work on the exterior of the International Space Station on Friday. Along the way, they also enjoyed amazing views of Earth.

In what NASA is calling "HERstory" in space, Christina Koch and Jessica Meir stepped outside the International Space Station on Friday to replace a bad battery charger.

(Image credit: NASA)

  • October 18th 2019 at 13:54

All-Female Spacewalk Friday

By Brendan Byrne

Friday marks the first time a space walk has comprised only female astronauts. Women have walked in space before but the walk scheduled for Friday reflects a real change in the astronaut corps.

  • October 18th 2019 at 11:12

NASA Scientists Try A New Approach To Free InSight Mars Lander's Stuck Thermometer

By Joe Palca
Instrument Deployment Camera on Mars InSight lander showing scoop "pinning" thermal instrument called the mole.

A sophisticated thermometer on NASA's Mars InSight lander has been stuck for months. It was supposed to drive down 16 feet into the Martian soil but stopped. So scientists used a novel way to free it.

(Image credit: NASA/Caltech-JPL)

  • October 17th 2019 at 22:57

NASA's First All-Female Spacewalk Set For Friday

By Rachel Treisman
Astronauts Christina Koch (right) and Jessica Meir pose for a photo on the International Space Station on Oct. 4. NASA moved up the first all-female spacewalk because of a power system failure at the space station.

Astronauts Christina Koch and Jessica Meir will replace a faulty power regulator on the International Space Station. Only 14 women have participated in spacewalks, and all were accompanied by men.

(Image credit: NASA via AP)

  • October 17th 2019 at 00:12

For NASA's New Suits, 'Mobility' Is The Watchword

By Scott Neuman
NASA administrator Jim Bridenstine speaks during a demonstration of two NASA spacesuit prototypes for lunar exploration on Tuesday.

The space agency unveils two new spacesuits for a planned 2024 return to the moon. They're designed to be more comfortable and easier to move around in than their Apollo-era forerunners.

(Image credit: Kevin Wolf/AP)

  • October 16th 2019 at 10:34

You Know It's Halloween Season When The Night Sky Glows Orange

It's called the Hunter's moon — the first full moon after the Harvest Moon. It will peak at 5:07 p.m. ET on Sunday. The orange is actually the moon reflecting the sun's color.

  • October 11th 2019 at 12:17

NASA's New Black Hole Model

NASA has produced a computer model of a black hole in 3D. An astrophysicist with NASA says, "It looks kind of like Saturn. There's a big circle in the middle, surrounded by a very thin disk of gas."

  • October 3rd 2019 at 11:05

Elon Musk Unveils SpaceX's New Starship, Designed To Fly To The Moon, Mars And Beyond

By Carmel Wroth
A prototype of SpaceX

Calling it "the most inspiring thing" he's ever seen, SpaceX's CEO talked up his company's big innovation and plans to fast-track production of the spacecraft. He hopes to fly passengers by next year.

(Image credit: Loren Elliott/Getty Images)

  • September 29th 2019 at 20:26

SpaceX Squares Off Against Homeowners Near Texas Launch Facility

By Paul Flahive

There are several dozen houses within a few miles of SpaceX's launch facility in Texas. The company feels they are now too close and is offering to buy them. Many homeowners do not want to move.

  • September 26th 2019 at 23:53

A Peculiar Solar System Has Scientists Rethinking Theories Of How Planets Form

By Nell Greenfieldboyce
A team of scientists used a telescope at the Calar Alto Observatory in Spain to detect a gas giant orbiting a tiny red star some 30 light-years from Earth.

A surprisingly large planet orbiting a small star defies the conventional wisdom about how planets are born. But a dark-horse idea from more than 20 years ago could explain it.

(Image credit: Baback Tafreshi/Science Source/Getty Images)

  • September 26th 2019 at 20:00

Meet The Nuclear-Powered Self-Driving Drone NASA Is Sending To A Moon Of Saturn

By Geoff Brumfiel
NASA

Almost everyone who learns about the project thinks it sounds "crazy," admits one scientist. But the technology should work.

(Image credit: Johns Hopkins APL)

  • September 17th 2019 at 11:09

India Spacecraft Located, Condition Unknown

By Lauren Frayer
Indian Space Research Organization (ISRO) Chairman Kailasavadivoo Sivan displays a model of Chandrayaan 2 orbiter and rover during a press conference at their headquarters in Bangalore, India on Aug. 20.

After losing contact with the unmanned craft as it was trying to land on the moon, scientists appear to have captured an image of the lander on the surface, and they're trying to establish contact.

(Image credit: Aijaz Rahi/AP)

  • September 8th 2019 at 17:53

Fate Of India's Moon Lander Unknown

By Lauren Frayer

India's mission control lost contact with its Vikram lander as it tried to make a soft landing near the moon's remote South Pole. Now the craft has been located, but its condition is unknown.

  • September 8th 2019 at 13:56

India's Attempt To Land Rover At Moon's South Pole Fails

By Vanessa Romo
Indian Space Research Organization employees react as they learn that mission control lost communication with its unmanned landing module moments before it touched down on the moon

The spacecraft's descent was going as planned until it reached an altitude of 2.1 km over the surface. "Subsequently, communication from Lander to the ground stations was lost," scientists explained.

(Image credit: Aijaz Rahi/AP)

  • September 7th 2019 at 00:58
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