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The Milky Way glitters in the predawn sky over Portugal's Guadiana River in this image by astrophotographer Sérgio Conceição. Saturn, Jupiter and the bright star Antares appear embedded in the Milky Way's dusty arc, while the bright star Spica dominates the sky to the right. In the foreground of this photo is the 500-year-old Bridge of Ajuda.

The Most Amazing Space Photos This Week!

By Doris Elin Salazar

Here are our picks for the most amazing space photos of the week.

U.S. Department of Defense headquarters

Space Development Agency Promises to Do More with Less

By Sandra Erwin

The Space Development Agency officially came into existence last week and already is causing a stir.

A copper alloy astrolabe found in a shipwreck in Oman dates to between 1496 and 1501, making it the oldest mariner's astrolabe ever discovered.

Mariner's Astrolabe from 1503 Shipwreck Is World's Oldest

By Stephanie Pappas

An astrolabe found at a shipwreck site in Oman is the oldest one ever discovered.

This image, taken by New Yorker John Draper in 1840, is the first photo of the moon.

On This Day in Space! March 23, 1840: First Photo of the Moon

By Hanneke Weitering

On March 23, 1840, a New Yorker named John William Draper became the first person to take a photo of the moon. See how it happened in our On This Day in Space Video Series.

The pulsar J0002+6216 streaks away from the bubble-like supernova remnant CTB 1. This composite image combines radio, visible light and infrared data. CTB 1, if viewed in the night sky, would appear to be the size of a full moon.

Whirling 'Cannonball' Pulsar Flees Supernova Site at Epic Speed

By Sarah Lewin

A supernova explosion flung out a super-dense, whirling stellar core, sending it streaking across space at almost 2.5 million miles per hour with a glowing trail 13 light-years long in its wake.

The 4-lb. Mars Helicopter will travel to the Red Planet with NASA's next Mars rover, which is scheduled to launch in mid-2020.

2020 Mars Helicopter Could Open Alien Skies to Exploration

By Mike Wall

A few brief hops in the Martian air two years from now could open alien worlds to an entirely new kind of exploration.

Tech

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An image of the asteroid Pallas captured by the European Southern Observatory's Very Large Telescope.

NASA May Send a Smallsat Mission to the Giant Asteroid Pallas

By Meghan Bartels

NASA is considering funding a mission that would send a satellite the size of a mini-fridge to the asteroid belt to examine an unexplored world: a massive asteroid scientists call Pallas.

The Hubble Space Telescope captured this image of the impact of Shoemaker-Levy 9 fragment G with Jupiter on July 18, 1994.

How a Viral Comet Crash Into Jupiter Helped Popularize the Internet

By Meghan Bartels

A quarter century ago and thousands of miles away, a dramatic weeklong cosmic collision unfolded and helped the internet gain a foothold in people's lives.

Spaceflight

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The Milky Way glitters in the predawn sky over Portugal's Guadiana River in this image by astrophotographer Sérgio Conceição. Saturn, Jupiter and the bright star Antares appear embedded in the Milky Way's dusty arc, while the bright star Spica dominates the sky to the right. In the foreground of this photo is the 500-year-old Bridge of Ajuda.

The Most Amazing Space Photos This Week!

By Doris Elin Salazar

Here are our picks for the most amazing space photos of the week.

U.S. Department of Defense headquarters

Space Development Agency Promises to Do More with Less

By Sandra Erwin

The Space Development Agency officially came into existence last week and already is causing a stir.

Science & Astronomy

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U.S. Department of Defense headquarters

Space Development Agency Promises to Do More with Less

By Sandra Erwin

The Space Development Agency officially came into existence last week and already is causing a stir.

A copper alloy astrolabe found in a shipwreck in Oman dates to between 1496 and 1501, making it the oldest mariner's astrolabe ever discovered.

Mariner's Astrolabe from 1503 Shipwreck Is World's Oldest

By Stephanie Pappas

An astrolabe found at a shipwreck site in Oman is the oldest one ever discovered.

Search For Life

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Artist's illustration of Europe's ExoMars rover "Rosalind Franklin" (foreground) and Russia's stationary surface science platform “Kazachok” (background) on the surface of Mars.

Meet 'Kazachok': Landing Platform for ExoMars Rover Gets a Name

By Mike Wall

The Russian-built landing platform for the ExoMars rover now has a name: 'Kazachok.'

Artist’s illustration of the exoplanet Proxima b, the Earth-size world that orbits the red dwarf star Proxima Centauri.

Why This Poisonous Gas Could Be a Sign of Alien Life

By Mike Wall

Scientists hunting for signs of alien life shouldn't be so quick to dismiss carbon monoxide, a new study suggests.

An artist's depiction of the Europa Clipper mission, which would receive $600 million in the president's budget request for the fiscal year beginning in October 2019.

Europa Clipper Mission to Jupiter Gets $600M in NASA's 2020 Budget Request

By Meghan Bartels

NASA's Europa Clipper mission could receive $600 million for the fiscal year that begins in October, according to budget request documents released today (March 11) by the Trump administration.

Skywatching

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Leo can be found prowling the Spring night skies. This sky map shows Leo over New York at 11 p.m. EDT on March 22, 2019.

Spring Arrives with a Lion in the Night Sky

By Joe Rao

For each season of the year, there is a "keynote" star pattern — and spring brings us to Leo, the Lion.

An airplane crosses the supermoon full moon of Dec. 3, 2017 as seen near Ronald Reagon National Airport in Washington, D.C.

Slooh Webcasts: Vernal Equinox and Super Worm Moon Celebration

By SPACE.com Staff

The online observatory Slooh.com hosted a live webcast of the Super Worm Moon and the vernal equinox on March 20.

A supermoon climbed its way to the top of the Washington Monument, Sunday, June 23, 2013, in Washington as seen in the amazing space wallpaper. This year the supermoon is up to 13.5 percent larger and 30 percent brighter than a typical full moon is.

See the 'Super Worm Moon' Rise with the Spring Equinox Today!

By Elizabeth Howell

Entertainment

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Alan Eustace during a skydive. The 2016 documentary "14 Minutes from Earth," which just became available on Netflix, documents Eustace's record-setting 2014 jump.

Netflix Premieres Nail-Biting '14 Minutes From Earth,' With Bold Stratospheric Jump

By Elizabeth Howell

The documentary "14 Minutes From Earth," which just premiered on Netflix, shows the secrecy behind, and the excitement following, the highest free-fall jump ever.

The crew of "The Orville" get a glimpse at life in 2015 in the episode "Lasting Impressions."

A Time Capsule Is Recovered and Lt. Malloy Experiences Life in 2015 in 'The Orville' Episode 'Lasting Impressions'

By Scott Snowden

A simple, back-to-basics episode of "The Orville" reminds us that convoluted plots aren't a prerequisite for quality sci-fi.

Spock (Ethan Peck) escorts Burnham (Sonequa Martin-Green) to the epicenter of a dangerous plan in the "Star Trek: Discovery" episode "The Red Angel."

The Identity of the Mysterious Red Angel Is Revealed in This Week's 'Star Trek: Discovery'

By Scott Snowden

Burnham has to deal with one emotional uppercut after another in "The Red Angel."