December 4, 2025
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Breaking News
  • [ December 4, 2025 ] Live coverage: SpaceX to launch 28 Starlink satellites on Falcon 9 rocket from Vandengerg SFB Falcon 9
  • [ December 4, 2025 ] Orion hatch ‘blemish’ delays launch day rehearsal for Artemis 2 astronauts Mission Reports
  • [ December 3, 2025 ] Jared Isaacman makes second appeal for NASA administrator position News
  • [ December 2, 2025 ] Sunset SpaceX launch adds 29 more Starlink satellites into low Earth orbit Falcon 9
  • [ December 2, 2025 ] Arianespace launches South Korean Earth observation satellite on Vega-C flight Mission Reports

ERG

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

  • Live coverage: SpaceX to launch 28 Starlink satellites on Falcon 9 rocket from Vandengerg SFB
    December 4, 2025
  • Orion hatch ‘blemish’ delays launch day rehearsal for Artemis 2 astronauts
    December 4, 2025
  • Jared Isaacman makes second appeal for NASA administrator position
    December 3, 2025
  • Sunset SpaceX launch adds 29 more Starlink satellites into low Earth orbit
    December 2, 2025
  • Arianespace launches South Korean Earth observation satellite on Vega-C flight
    December 2, 2025
  • SpaceX launches evening Falcon 9 rocket from Vandenberg SFB
    December 1, 2025
  • SpaceX kicks off December with predawn Falcon 9 rocket launch
    November 30, 2025
  • SpaceX launches 140 spacecraft on Transporter-15 rideshare mission
    November 28, 2025
  • NASA astronaut, two cosmonauts take Thanksgiving Day ride to space station
    November 27, 2025
  • BlackSky confirms it was the ‘confidential customer’ on recent Rocket Lab Electron rocket launch
    November 27, 2025
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