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Updated: 7 hours 24 min ago

As Oceans Alkalized, Life Developed Bones and Shells

16 September, 2017 - 13:46
A critical feature of many multicellular lifeforms on Earth are hard, biological structures, such as animal bones and snail shells that are made from minerals.

3D Stellar Map: Neighboring Stars Could Disturb Solar System in Distant Future

16 September, 2017 - 13:44
ESA's new time-lapse video shows that close-by stars have the potential to cause disturbances to the solar system as they travel through our galaxy in the next hundreds of thousands of years.

Tears and Applause: Cassini Team Reflects on Saturn Plunge

15 September, 2017 - 18:32
The Cassini team is proud of the little spacecraft that went far beyond expectations, sad to lose their constant view of Saturn and family of researchers, eager to return to that planet and its mesmerizing moons — and ready for some champagne.

Cassini Dives Into Saturn Today: Here's When and How to Watch

15 September, 2017 - 18:01
Today (Sept. 15), NASA's Cassini spacecraft will dive into Saturn's atmosphere and disintegrate. You can watch the action live right here on Space.com, starting at 4:00 a.m. PDT (7 a.m. EDT).

Saturn Spectacular: NASA's Free E-Book Offers Top 100 Cassini Images

15 September, 2017 - 18:00
The Cassini mission to Saturn has sent home a wealth of beautiful images. NASA has compiled 100 of the most spectacular into a free e-book, downloadable from its website.

How Big Is Earth?

15 September, 2017 - 17:47
Earth is the fifth largest planet in the solar system and the densest.

Giant, Scorching-Hot Alien Planet Is Darker Than Asphalt

15 September, 2017 - 17:00
The huge, blistering-hot alien world WASP-12b reflects virtually none of the light that hits the planet, a new study reports.

In Photos: Cassini Mission Ends with Epic Dive into Saturn

15 September, 2017 - 16:49
NASA's Cassini mission came to an end on Sept. 15, 2017, when the spacecraft intentionally plunged into Saturn's atmosphere. Here are the photos from Cassini's grand finale.

Earth’s Sun: Facts About the Sun’s Age, Size and History

15 September, 2017 - 16:29
Read about the history and future of Earth’s sun as well as fun facts about the sun’s age, size, temperature, and phenomena like solar flares.

RIP, Cassini: Historic Mission Ends with Fiery Plunge into Saturn

15 September, 2017 - 13:16
NASA's Cassini spacecraft broke up in Saturn's atmosphere this morning, bringing an end to its historic 13-year mission at the ringed planet that was marked by incredible discoveries.

NASA's Cassini Mission to Saturn: By the Numbers

15 September, 2017 - 12:50
The remarkable Cassini mission is coming to a bittersweet end, and here's one great way to grasp its importance: look at its numerical figures.

So Long, Cassini! Space.com Says Goodbye to the Saturn Probe

15 September, 2017 - 10:51
Farewell, Cassini, and thank you.

NASA's Kennedy Space Center Reopens Saturday, One Week After Hurricane Irma

15 September, 2017 - 10:13
NASA's Kennedy Space Center will finally reopen tomorrow (Sept. 16), just over one week after it closed to prepare for Hurricane Irma.

See Where the Cassini Spacecraft Crashed into Saturn (Photos)

15 September, 2017 - 07:50
The last photos NASA's Cassini spacecraft ever took were of its own grave.

Cassini's Last-Ever Photos Come Down to Earth

14 September, 2017 - 17:32
The final photos ever taken by NASA's Cassini Saturn orbiter have begun coming down to Earth, and you can see them all.

Boom! SpaceX's Rocket Landing 'Blooper Reel' Is Epic ... and Explosive (Video)

14 September, 2017 - 15:50
In a video called "How Not to Land an Orbital Rocket," Elon Musk and SpaceX deliver a highlight reel of failures in first-stage orbital landings and test flights.

Titanic Asteroid Vesta May Host Buried Ice

14 September, 2017 - 13:02
The giant asteroid Vesta may possess ice buried under its surface, a new study finds.

Accompany Cassini on Its Final Dive into Saturn with Mobile Apps

14 September, 2017 - 13:00
This Friday, Sept. 15, 2017, the long and successful Cassini-Huygens mission to Saturn and its moons will come to an end when the spacecraft plunges into Saturn's cloud tops.

Mysterious X-37B Space Plane Explained: Boeing's New Video

14 September, 2017 - 13:00
A new video lays out the basics of what the Air Force's robotic X-37B space plane is doing on its latest mystery mission, which lifted off last week.

Cassini's Swan Song: How Saturn Probe Will Spend Its Final Day

14 September, 2017 - 12:58
NASA's Cassini mission will have a hectic final day before it burns up in Saturn's atmosphere on Friday morning (Sept. 15).

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