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Nemesis Star Theory: The Sun's 'Death Star' Companion

July 20, 2017 | Reference

Some scientists think the sun is part of a binary system and that it has a companion star that affects life on Earth.
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Harvest Moon 2017: When and How to See September's Full Moon

July 20, 2017 | Article

September's Harvest Moon, the full moon nearest the autumnal equinox, rises on Sept. 6. Here are the best times and tools to see it.
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Apollo 11 Moon Rock Bag Sells for $1.8M at Sotheby's Space Auction

July 20, 2017 | Article

A cloth bag used to protect the first-ever rocks collected by an astronaut on the moon 48 years ago Thursday (July 20) has made history again — this time by selling at auction for $1.8 million, more than any other U.S. space program artifact to date.
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Apollo 11's 48th Anniversary: Space Gala Salutes the Future

July 20, 2017 | Article

Apollo 11 moonwalker Buzz Aldrin hosted a gala last weekend to celebrate the historic mission's 48th anniversary.
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Best Space Books for Kids

July 20, 2017 | Article

Feed and inspire a kid's thirst for space with these book picks by Space.com's writers and editors.
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Best Space Books and Sci-Fi: A Space.com Reading List

July 20, 2017 | Article

Space.com's editors present a reading list for space and sci-fi lovers, as well as children who are interested in astronomy and spaceflight.
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Enjoy an Eclipse Safari! Total Solar Eclipse App Features Interactive Map and Space.com News

July 20, 2017 | Article

Space.com has partnered with Simulation Curriculum to make what we think is a fantastic mobile app for the Aug. 21 total solar eclipse.
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Watch NASA's Apollo 11 Moonwalk Moments in This Archive Video

July 20, 2017 | Article

Watch historic footage from July 20, 1969, as humanity made its first steps on the lunar surface.
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SpaceX Drops Plans for Powered Dragon Landings

July 20, 2017 | Article

SpaceX no longer plans to have the next version of its Dragon spacecraft be capable of powered landings, a move that has implications for the company's long-term Mars plans.
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A Huge Asteroid Hitting Mars 4 Billion Years Ago May Have Shaped the Red Planet

July 20, 2017 | Article

A new study supports the idea that the sculpting of Mars and its two small moons was largely determined by a huge impact early in the solar system's history.
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