Suitsat-1, known informally as Mr. Smith, is released from the ISS back in February 2006. (NASA) One of the most bizarre satellites to orbit the Earth made for an eerie sight as Suitsat-1, a lifeless space suit equipped with batteries and a transmitter, hurtled, aimlessly, around our blue marble. Suitsat-1 was an empty shell that was released into space during an ISS spacewalk conducted by commander Bill McArthur and flight engineer Valery Tokarev back in 2006. NASA TV’s live video...

Our solar system can add another moon to its roster. On the frozen fringes, in the Kuiper Belt, a tiny moon orbits the dwarf planet known as Makemake. On Tuesday, scientists announced the discovery by some members of the team that spotted Pluto's smaller moons years ago: the Hubble Space Telescope has detected a tiny, dark moon circling the dwarf planet. Makemake itself is just 870 miles wide. Its moon — dubbed MK2 — is a mere 100 miles across...

A Danish astronaut spotted the elusive blue jets in the sky above Costa Rica and caught them on camera for the first time. ...

In honor of Earth Day, the U.S. Geological Survey recently released its fourth installment of its Earth As Art exhibit, which compiles stunning satellite images that showcase the earth as a masterpiece. “Landsat satellites see the Earth as no human can,” the USGS writes on its website. “Not only do they acquire images from the vantage point of space, but their sensors record infrared as well as visible wavelengths of light. The resulting images often reveal ‘hidden’ details of the...

People out and about in southern California on Tuesday evening were surprised to see a green orb streaking through the night sky. While the otherworldly glow might have led some to question the existence of aliens and their possible arrival, stargazers at the local observatory soon put those worries to rest. There were dozens of reports of sightings on the American Meteorology Society's website that day, with most saying they spotted a blue or green fireball in the sky. "First...

The next stop for SpaceX: the Red Planet. Founder and CEO Elon Musk announced Wednesday via Twitter that he intends to send a Dragon capsule to land on Mars as early as 2018. If successful, it would be a big first step toward his ultimate goal of colonizing the planet. Musk also said the capsule will be called the Red Dragon, a nod to the planet's red surface. The first test flight will be unmanned; Musk also said he wouldn't...

As Earth tumbles through the tail of the famed Halley's comet, we are in the midst of an annual meteor shower that will peak on Thursday with dozens of meteors per hour. Known as the Eta Aquarids, many of these meteors will be visible from the Northern Hemisphere, each about the size of a grain of rice, according to Business Insider. This meteor shower is expected to last from April 20 through May 21, but the peak will occur Thursday...

Meteorologist Ari Sarsalari looks at some amazing images from space. ...

This robot, being tested by NASA, may one day be running experiments on Mars. ...

An ancient volcano found on Mars is giving NASA scientists clues to the potential for microbial life. ...

Using its infrared cameras, the Hubble telescope got another very cool look into our galaxy's core. Meteorologist Danielle Banks explains. ...

On May 30, skywatchers will have the chance to see Mars in a way it hasn’t looked in over a decade as the red planet comes closer to the Earth than it has in 11 years. According to NASA, Mars will be about 46.8 million miles away from our planet. While it’s not exactly a hop and a skip away, it’s a lot closer than its usual 249-million-mile distance. Because the two planets have egg-shaped orbits, their minimum distance apart...