Why fusion ignition is being hailed as a major breakthrough in fusion — a nuclear physicist explains

The target chamber at the National Ignition Facility has been the site of a number of breakthroughs in fusion physics. (Image credit: U.S. Department of Energy/Lawrence Livermore National Laboratory) This article was originally published at The Conversation. (opens in new tab) The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Carolyn Kuranz (opens in new tab), Associate Professor of Nuclear Engineering, University of Michigan American scientists have announced what they have called a major breakthrough in a long-elusive goal of creating energy from nuclear fusion. The U.S. Department of Energy…

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Look up! The Ursid meteor shower starts tonight (Dec. 17)

The annual Ursid meteor shower will begin on Saturday (Dec. 17) and last through the Yuletide period until the day after Christmas day.  The Ursid meteor shower will peak on Thursday, Dec. 22, but the following day when the moon is in its fully dark new moon phase might be an opportune time to hunt for bright streaks and fireballs from this meteor shower. Though at their peak the Ursids can produce around 22 meteors per hour, in dark conditions with little illumination from the moon, skywatchers can realistically expect…

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Leaky Soyuz spacecraft tests thrusters at space station, US spacewalk delayed

A leaky Soyuz capsule at the International Space Station test-fired its thrusters on Friday (Dec. 16) as Russian engineers investigated why it suffered an uncontrolled coolant spill this week. The Russian-built Soyuz spacecraft, called Soyuz MS-22, sprang a coolant leak Wednesday night (Dec. 14) as two cosmonauts prepared to take a spacewalk outside the station. Russia’s space agency Roscosmos canceled that spacewalk and postponed another indefinitely as it investigates the cause of the coolant leak, which sprayed coolant particles into space from an exterior line on the capsule. On Friday,…

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James Webb Space Telescope’s best images of all time (gallery)

(Image credit: NASA, ESA, CSA, and STScI, Joseph DePasquale (STScI), Alyssa Pagan (STScI), Anton M. Koekemoer (STScI)) NASA’s $10 billion James Webb Space Telescope (JWST) launched on Dec. 25, 2021, from Europe’s Spaceport in French Guiana. Since it arrived at its new cosmic home, Lagrange Point 2, on Jan. 24, 2022, the infrared observatory has been busy sharing some truly breathtaking views of the cosmos.  JWST, the largest and most powerful space telescope to date, released its first scientific images on July 12, 2022, but it didn’t stop there.  The…

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See the final last quarter moon of 2022 rise tonight (Dec. 16)

On Friday (Dec. 16), the moon will enter its last quarter phase for the final time in 2022 with the lunar disk exactly half-illuminated.  As seen from New York City, 2022’s final last quarter moon will rise seven degrees above the horizon to the east at around 12:21 a.m. EST (0521 GMT), according to In the Sky (opens in new tab). It will reach its highest point in the sky, 55 degrees above the southern horizon at around 6:00 a.m. EST (1100 GMT) before disappearing in the light of dawn…

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Mars helicopter Ingenuity aces 36th Red Planet flight

NASA’s Ingenuity helicopter now has three dozen Mars flights under its belt. The 4-pound (1.8 kilograms) Ingenuity aced its 36th Red Planet sortie on Sunday (Dec. 10), staying aloft for 60.5 seconds on a flight that covered 361 feet (110 meters) of horizontal distance. Sunday’s hop came just a week after Ingenuity set a new altitude record, soaring 46 feet (14 m) above the floor of Mars‘ Jezero Crater on Dec. 3. The chopper got a maximum of 33 feet (10 m) above the red dirt this past Sunday, according…

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