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On this day in space! June 21, 2004: SpaceShipOne makes 1st privately funded human spaceflight
By Hanneke Weitering last updated
On June 21, 2004, the first privately funded human spaceflight, launched on SpaceShipOne.

A mysterious gamma-ray stream comes from the Milky Way's center. Could dark matter have something to do with it?
By Robert Lea published
New research has failed to rule out self-annihilating dark matter as the source of a hotly debated gamma-ray emission known as the Galactic Center Excess radiating from the heart of the Milky Way.

Happy Summer Solstice! Today marks the longest day of the year for the Northern Hemisphere
By Anthony Wood published
The summer solstice marks the longest day and the start of astronomical summer.

This Week In Space podcast: Episode 215 — Disclosure Day
By Space.com Staff published
On Episode 215 of This Week In Space, Rod Pyle and guest co-host Susan Karlin talk with bestselling sci-fi/sci-fact author Dr. David Brin.

Supermassive black holes may be surrounded by dark matter clusters, new 'echo map' technique suggests
By Robert Lea published
A technique called echo mapping suggests supermassive black holes, like that at the heart of the Milky Way, are surrounded by clusters of dark matter.

Do we need a lunar building code to build moon bases safely?
By Leonard David published
As NASA pushes to build a sustained human presence on the moon, one expert says what's needed is a lunar building code.

Late, great singer-songwriter Elliott Smith finds immortality as an asteroid
By Chelsea Gohd published
An asteroid has been named after Smith, who died in 2003 at the age of 34.

A private company will build and launch NASA's next Mars orbiter in 2028 — and it's not SpaceX
By Josh Dinner published
Schmidt has also reportedly invested significant sums in the company.
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