Live coverage of the countdown and launch of an Ariane 5 rocket with the Sky Muster 2 and GSAT 18 communications satellites. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
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JWST launch slips to early 2019
Extra testing of the James Webb Space Telescope and delays in assembling the powerful observatory will push back the $10 billion mission’s launch by at least six months to early 2019, officials announced last week as the telescope successfully completed an extensive performance test inside a cryogenic vacuum chamber in Houston.
Ariane 5
Live coverage: Ariane 5 blasts off with Galileo satellite quartet
Four European navigation satellites fastened on top of an Ariane 5 rocket lifted off from Kourou, French Guiana, at 1836:07 GMT (1:36:07 p.m. EST) Tuesday to propel the Galileo navigation network closer to global service. The Ariane 5’s upper stage delivered the spacecraft to a circular orbit more than 14,000 miles above Earth around four hours after launch.
Falcon 9
SpaceX to debut satellite-dimming sunshade on Starlink launch next month
A new sunshade, or visor, designed to reduce the brightness of SpaceX’s Starlink broadband Internet satellites will debut on the company’s next launch, a measure intended to alleviate astronomers’ concerns about impacts on observations through ground-based telescopes, SpaceX founder Elon Musk said Monday.