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A DART view of the Dimorphos asteroid right before impact. NASA via YouTubeThe DART spacecraft, which is about the size of a vending machine, crashed into Dimorphos at 7:14 p.m. "Oh my goodness," said Elena Adams, a DART mission systems engineer at the Johns Hopkins University Applied Physics Laboratory. The DART mission is functioning as a proof of concept of asteroid deflection as a planetary defense strategy. Betts said he hopes the DART mission will continue to raise awareness about the importance of planetary defense.

The mission, known as DART, or the Double Asteroid Redirection Test, will attempt a method of planetary defense that could save Earth from an asteroid on a potential collision course with the planet. On Monday, the spacecraft will crash into Dimorphos at a blistering speed of around 4 miles per second, or 15,000 mph. Ground-based telescopes will be used to time Dimorphos' orbit and determine whether the mission was a success. The Applied Physics Lab built and manages the $325 million DART mission for NASA. Even if the DART mission fails, scientists will learn a lot from the experiment, said Andrea Riley, a program executive in NASA's Planetary Defense Coordination Office.

☆ NASA says it will try to launch its massive moon rocket again in late September
▼ + stars: | 2022-09-13 | by ( Paola Rosa-Aquino | ) www.businessinsider.com time to read: +6 min

The second launch attempt for NASA's Space Launch System rocket was delayed due to a liquid hydrogen leak. Joe Raedle/Getty ImagesHydrogen fuel woes interrupted the second launch attemptThe new launch dates come after the launch of the Space Launch System and its uncrewed Orion capsule was called off for a second time on Saturday, September 3. "Teams encountered a liquid hydrogen leak while loading the propellant into the core stage of the Space Launch System rocket," NASA said in a blog post. After attempts to troubleshoot were unsuccessful, Artemis' launch director called off the launch. Invited guests and NASA employees watch as NASA's Space Launch System (SLS) rocket rolls out of the Vehicle Assembly Building, on August 16, 2022.

☆ The Artemis I moon mission is set for liftoff Saturday. Watch live as NASA launches its new $50 billion mega-rocket.
▼ + stars: | 2022-09-02 | by ( Paola Rosa-Aquino | Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +4 min

NASA's Space Launch System rocket is set to launch its first uncrewed mission to the moon on September 3. Watch the historic SLS rocket launch live, in the NASA broadcast below. "There's no guarantee that we're going to get off on Saturday, but we're gonna try," Mike Sarafin, Artemis mission manager, said during a news conference on Thursday, September 1. An illustration of the Space Launch System lifting off from the launchpad in Cape Canaveral, Florida. If the uncrewed Orion spaceship makes it around the moon and back without a hitch, the Artemis II mission will carry astronauts on a similar roundabout.

The first launch of NASA's Space Launch System rocket was delayed on Monday because of an engine issue. But now NASA has a new target launch window for Artemis I: Saturday, September 3 at 2:17 p.m. The Space Launch System core stage (RS-25 engines circled in blue) in the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida on June 10, 2021. NASA/Glenn BensonThe rocket, called the Space Launch System (SLS), was partially filled with fuel at the time of the issue. Weather during Saturday's launch window "is a 60% go for launch," Melody Levin, a meteorologist at NASA, said at a briefing on Thursday.

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