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On this day in space! April 27, 1961: NASA launches Explorer 11
By Hanneke Weitering last updated
On April 27, 1961, NASA launched Explorer 11, a satellite that contained the first gamma ray telescope to go to space.

Uranus passed between Earth and a distant star this month — and NASA caught the rare event
By Julian Dossett published
NASA researchers got a rare chance to study Uranus' atmosphere and rings this month, when the ice giant passed between Earth and a distant star, creating a "stellar occultation."

20 years ago, 'Star Wars: Republic Commando' made us care about the clones long before 'The Clone Wars' and 'The Bad Batch'
By Fran Ruiz published
The 2005 cult classic was pivotal to giving the Grand Army of the Republic faces and voices before George Lucas and Dave Filoni went deeper.

Trump administration cancels lease for NASA's Goddard Institute for Space Studies lab in New York City
By Monisha Ravisetti published
The Trump administration has canceled the New York City lease of the Goddard Institute for Space Studies, a leading NASA climate-studying organization.

Faint Neptune joins Venus and Saturn to form a planetary triangle in the pre-dawn sky on April 28
By Anthony Wood published
Venus, Saturn and dim Neptune will form a planetary triangle in the pre-dawn sky on April 28, with Mercury hovering on the periphery.

Meet the 'Doctor Who' actors who brought the retrofuturistic robots to life for season 2's 'The Robot Revolution' (interview)
By Jeff Spry published
Veteran creature artists Stephen Love and Rob Strange share the rigors of having zero vision and taking tumbles while playing retro robots.

NASA's Dragonfly nuclear-powered helicopter clears key hurdle ahead of 2028 launch toward huge Saturn moon Titan
By Andrew Jones published
NASA's pioneering Dragonfly mission has passed its critical design review, keeping it on track for a 2028 launch to the potentially life-hosting Saturn moon Titan.

The new 'Doctor Who' episode 'The Well' is actually a sequel to a David Tennant classic
By Richard Edwards published
The Doctor may not realise it at first, but he's been to Planet 6767 before…

This Week In Space podcast: Episode 158 — Hubble's 35th Birthday
By Space.com Staff published
On Episode 158 of This Week In Space, Rod Pyle and Tariq Malik are joined by John Grunsfeld to talk about the Hubble Space Telescope on its 35th anniversary.

'We learned so much that we didn't know': Firefly Aerospace's Blue Ghost moon lander mission was full of surprises
By Leonard David published
Firefly Aerospace's CEO Jason Kim says the company's successful Blue Ghost moon lander mission revealed 'so much that we didn't know' about the lunar surface.
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