Watch Japan's Epsilon Rocket Launch the ASNARO-2 Radar Earth Satellite
A Japanese Epsilon rocket launched a new Earth-observation satellite into space this week, notching a third successful flight for the solid-fueled booster.
The Epsilon rocket lifted off the Japan Aerospace Exploration Agency's Uchinoura Space Center at 6:06 a.m. Japan Standard Time on Jan. 18, JAXA officials said. Just under an hour later, the rocket delivered its payload, the ASNARO-2 radar Earth-observation satellite, into orbit.
"The launch and flight of Epsilon-3 took place normally,"' JAXA officials said in a statement.
The Epsilon booster is a three-stage solidfueled rocket topped with a compact liquid-fueled propulsion system for this Epsilon-3 mission. It is nearly 79 feet tall (24 meters) and can carry payloads of up 1,543 lbs. (700 kilograms) into low-Earth orbit.
For this mission, the Epsilon rocket delivered ASNARO-2 (short for Advanced Small-size Radar Satellite 2) into orbit for Japan's NEC Corporation. The launch had been delayed from November 2017 so engineers could address an incompatibility issue in the booster's electrical system, JAXA officials have said.
JAXA's Epsilon rocket made its debut flight in 2013. A second mission, Epsilon-2, launched in December 2016.
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Tariq is the award-winning Editor-in-Chief of Space.com and joined the team in 2001. He covers human spaceflight, as well as skywatching and entertainment. He became Space.com's Editor-in-Chief in 2019. Before joining Space.com, Tariq was a staff reporter for The Los Angeles Times covering education and city beats in La Habra, Fullerton and Huntington Beach. He's a recipient of the 2022 Harry Kolcum Award for excellence in space reporting and the 2025 Space Pioneer Award from the National Space Society. He is an Eagle Scout and Space Camp alum with journalism degrees from the USC and NYU. You can find Tariq at Space.com and as the co-host to the This Week In Space podcast on the TWiT network. To see his latest project, you can follow Tariq on Twitter @tariqjmalik.