Constellations, Launch, New Space and more…
TAG
“Akatsuki”
ESA Selects Revolutionary Venus Mission EnVision

PARIS (ESA PR) — EnVision will be ESA’s next Venus orbiter, providing a holistic view of the planet from its inner core to upper atmosphere to determine how and why Venus and Earth evolved so differently.

The mission was selected by ESA’s Science Programme Committee on 10 June as the fifth Medium-class mission in the Agency’s Cosmic Vision plan, targeting a launch in the early 2030s.

(more…)
  • Parabolic Arc
  • June 10, 2021
Parker Solar Probe Offers Stunning View of Venus
When flying past Venus in July 2020, Parker Solar Probe’s WISPR instrument, short for Wide-field Imager for Parker Solar Probe, detected a bright rim around the edge of the planet that may be nightglow — light emitted by oxygen atoms high in the atmosphere that recombine into molecules in the nightside. The prominent dark feature in the center of the image is Aphrodite Terra, the largest highland region on the Venusian surface. Bright streaks in WISPR, such as the ones seen here, are typically caused by a combination of charged particles — called cosmic rays — sunlight reflected by grains of space dust, and particles of material expelled from the spacecraft’s structures after impact with those dust grains. The number of streaks varies along the orbit or when the spacecraft is traveling at different speeds, and scientists are still in discussion about the specific origins of the streaks here. The dark spot appearing on the lower portion of Venus is an artifact from the WISPR instrument. (Credits: NASA/Johns Hopkins APL/Naval Research Laboratory/Guillermo Stenborg and Brendan Gallagher)

By Michael Buckley
Johns Hopkins University Applied Physics Laboratory

LAUREL, Md. — NASA’s Parker Solar Probe captured stunning views of Venus during its close flyby of the planet in July 2020.

Though Parker Solar Probe’s focus is the Sun, Venus plays a critical role in the mission: The spacecraft whips by Venus a total of seven times over the course of its seven-year mission, using the planet’s gravity to bend the spacecraft’s orbit. These Venus gravity assists allow Parker Solar Probe to fly closer and closer to the Sun on its mission to study the dynamics of the solar wind close to its source.

(more…)
  • Parabolic Arc
  • February 24, 2021
AKATSUKI in Highly Elliptical Orbit Around Venus

By Ultraviolet Imager (UVI), at around 2:19 p.m. on Dec. 7 (Japan Standard Time) at the Venus altitude of about 72,000 km. (Credit: JAXA)

By Ultraviolet Imager (UVI), at around 2:19 p.m. on Dec. 7 (Japan Standard Time) at the Venus altitude of about 72,000 km. (Credit: JAXA)

TOKYO (JAXA PR) — The Japan Aerospace Exploration Agency (JAXA) successfully inserted the Venus Climate Orbiter “AKATSUKI” into the orbit circling around Venus.

(more…)

  • Parabolic Arc
  • December 10, 2015
AKATSUKI Enters Orbit Around Venus

TOKYO, December 7, 2015 (JAXA PR) — The Japan Aerospace Exploration Agency (JAXA) performed the attitude control engine thrust operation of the Venus Climate Orbiter “AKATSUKI” for its Venus orbit insertion from 8:51 a.m. on December 7 (Japan Standard Time). As a result of analyzing data transmitted from the orbiter, we confirmed that the thrust emission of the attitude control engine was conducted for about 20 minutes as scheduled. The […]

  • Parabolic Arc
  • December 7, 2015
Japanese Spacecraft to Make Second Attempt to Orbit Venus

TOKYO (JAXA PR) — The Venus Climate Orbiter AKATSUKI will try to enter the orbit of Venus on Dec. 7 (Mon.) after five years of operation. We are welcoming support messages. After AKATSUKI’s failure to enter Venus’ orbit on Dec. 7, 2010, JAXA investigated the cause and considered a second attempt schedule while operating the satellite for a long period. Now, on Dec. 7, 2015, coincidentally the same day on […]

  • Parabolic Arc
  • December 5, 2015
Amid Celebrations Over Dragon’s Success, Gloom Across Three Continents Over Space Failures

NanoSail-D - Lost in space? (Credit: NASA)

As upstart SpaceX was feted this week for the successful flight and recovery of its first Dragon spacecraft, engineers on three continents were puzzling out the reasons behind three high-profile failures in space, demonstrating anew the challenges associated with the difficult field.

In Russia, officials watched as a Proton rocket sent three navigational satellites to the bottom of the Pacific off Hawaii, delaying the nation’s efforts to provide full global coverage for its GLONASS program. Japanese engineers scratched their heads over why their Akatsuki probe ended up in orbit around the sun instead of Venus. And NASA is not quite sure what happened to an experimental solar sail satellite that blasted off into space from Alaska.

(more…)

  • Parabolic Arc
  • December 11, 2010
Japanese Akatsuki Spacecraft Misses Orbit With Venus

JAXA's Akatsuki Venus spacecraft. (Image by Akihiro Ikeshita)

JAXA PRESS RELEASES

The Institute of Space and Astronautical Science of the Japan Aerospace Exploration Agency (ISAS/JAXA) performed Venus orbit insertion maneuver (VOI-1) for the Venus Climate Orbiter “Akatsuki” at 8:49 a.m. on December 7 (Japan Standard Time,) but, unfortunately, we have found that the orbiter was not injected into the planned orbit as a result of orbit estimation.

The “Akatsuki” was launched from the Tanegashima Space Center on May 21, 2010 (JST.)

(more…)

  • Parabolic Arc
  • December 9, 2010
Send a Message to Venus

JAXA's Akatsuki Venus spacecraft. (Image by Akihiro Ikeshita)

JAXA's Akatsuki Venus spacecraft. (Image by Akihiro Ikeshita)

JAXA PROGRAM DETAILS

The Japan Aerospace Exploration Agency (JAXA) is scheduled to launch the Venus Climate Orbiter “AKATSUKI” (PLANET-C) by H-IIA Launch Vehicle in Japan Fiscal Year 2010. The AKATSUKI will enter the orbit of Venus about half a year after its launch, and will take some two years to explore the atmosphere of Venus.

JAXA would like to enhance people’s interest in space and the Earth by holding a “message campaign” in which we invite people to send us messages that will be printed in fine letters on an aluminum plate and placed aboard the Venus Climate Orbiter “AKATSUKI”. We will accept messages both from Japan and overseas so that we can bind the feelings and thoughts of everybody in the world into one, and inject it into the orbit of Venus. Through this campaign, we would like to boost the public’s knowledge about Japanese space science research activities in Japan as well as abroad.

(more…)

  • Parabolic Arc
  • October 27, 2009