September 23, 2025
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Breaking News
  • [ September 22, 2025 ] A geologist, a former SpaceX launch director and a commercial astronaut; meet NASA’s 10 new astronaut candidates News
  • [ September 22, 2025 ] NRO, SpaceX launch reconnaissance satellites on Falcon 9 rocket from Vandenberg SFB Falcon 9
  • [ September 20, 2025 ] SpaceX launches 28 Starlink satellites on Sunday sunrise Falcon 9 flight Falcon 9
  • [ September 17, 2025 ] SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Cape Canaveral Falcon 9
  • [ September 16, 2025 ] NASA, Northrop Grumman postpone Cygnus XL arrival to ISS following propulsion issue Mission Reports

Van Allen radiation belts

Mission Reports

NASA’s resilient Van Allen Probes shut down

October 20, 2019 Stephen Clark

Ground controllers transmitted commands to shut down the second of NASA’s Van Allen Probes on Friday, three months after turning off an identical satellite to conclude a seven-year mission that explored the donut-shaped radiation belts surrounding Earth.

Mission Reports

Research platform launched to brave Van Allen radiation belts

December 20, 2016 Stephen Clark

Japan launched a research satellite Tuesday to repeatedly fly through the Van Allen belts high above Earth, helping scientists sort out how chaotic geomagnetic storms form and evolve and potentially endanger astronauts, spacecraft and infrastructure vital to life on the ground.

Mission Reports

Live coverage: Japan’s enhanced Epsilon booster blasts off

December 20, 2016 Stephen Clark

A Japanese Epsilon rocket launched Tuesday from the Uchinoura Space Center, a shoreline spaceport on the southern Japanese island of Kyushu, with a space weather research probe to study phenomena inside the turbulent Van Allen radiation belts. Liftoff of the 85-foot-tall rocket occurred at 1100 GMT (6 a.m. EST).

Mission Reports

Timeline of events during Epsilon rocket’s launch with the ERG mission

December 19, 2016 Stephen Clark

An Epsilon rocket is set to send a Japanese space weather research probe into an orbit stretching more than 20,000 miles above Earth to investigate how the Van Allen radiation belts shrink and swell with variable solar activity.

Mission Reports

Japan prepares launch of satellite to probe Earth’s radiation belts

December 19, 2016 Stephen Clark

Japanese engineers aim to launch an upgraded Epsilon booster Tuesday with a satellite to study the origins of powerful geomagnetic storms, phenomena that trigger picturesque polar auroras but could disrupt communications and and damage electric grids.

News Headlines

  • A geologist, a former SpaceX launch director and a commercial astronaut; meet NASA’s 10 new astronaut candidates
    September 22, 2025
  • NRO, SpaceX launch reconnaissance satellites on Falcon 9 rocket from Vandenberg SFB
    September 22, 2025
  • SpaceX launches 28 Starlink satellites on Sunday sunrise Falcon 9 flight
    September 20, 2025
  • SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Cape Canaveral
    September 17, 2025
  • NASA, Northrop Grumman postpone Cygnus XL arrival to ISS following propulsion issue
    September 16, 2025
  • SpaceX launches 24 Starlink satellites from California following back-to-back weather scrubs
    September 16, 2025
  • Northrop Grumman’s 1st Cygnus XL spacecraft launches on cargo run to the space station
    September 15, 2025
  • Launch preview: SpaceX to launch new, improved Northrop Grumman Cygnus XL resupply ship to the space station
    September 14, 2025
  • SpaceX launches 24 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    September 13, 2025
  • Department of the Air Force, FAA clear SpaceX to launch up to 120 Falcon 9 rockets annually from Cape Canaveral
    September 12, 2025
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