JAXA – Page 2 – Astronomy Now

JAXA, NASA approve replacement for failed Hitomi astronomy satellite

6 July 2017 Stephen Clark

The Japanese space agency is moving ahead with a smaller-scale X-ray astronomy satellite to replace the failed Hitomi observatory, which spun out of control about a month-and-a-half after its launch last year.

Japanese spacecraft spots planet-spanning wave on Venus

22 January 2017 Stephen Clark

Images from Japan’s Akatsuki spacecraft have revealed a gigantic wave in the atmosphere of Venus, and scientists say it may be the largest such feature in the solar system.

Japan’s Hitomi observatory made cosmic discovery before failing

12 July 2016 Stephen Clark

Japan’s doomed Hitomi observatory peeled back a veil on the inner workings of the Perseus cluster of galaxies before the satellite spun out of control earlier this year, revealing in unprecedented detail how gas heated to millions of degrees behaves around an unseen supermassive black hole, scientists said.

Mystery solved: Martian moons formed by a giant impact

5 July 2016 Astronomy Now

Where did the two natural satellites of Mars, Phobos and Deimos, come from? For a long time, their shape suggested that they were captured asteroids. However, the shape and course of their orbits contradict this hypothesis. Two independent and complementary studies now provide an answer: these satellites formed from the debris of a gigantic collision between Mars and a protoplanet one-third its size.

Japan gives up on rescuing black hole observatory

2 May 2016 Stephen Clark

Japan’s space agency says it has ceased efforts to rescue a failed X-ray astronomy satellite after it spun out of control and broke apart in orbit, declaring the nearly $400 million mission lost two months after its launch.

U.S. military rules out collision as cause of Hitomi satellite’s woes

30 March 2016 Stephen Clark

As Japanese ground controllers struggle to restore communications with a tumbling space telescope in orbit, the U.S. military’s space surveillance experts have eliminated one cause for the satellite’s troubles.

Japan’s newest space telescope goes silent

28 March 2016 Stephen Clark

Japan has lost contact with the newly-launched Hitomi space telescope, and ground observations indicate the satellite has shed debris and may be tumbling in orbit more than 350 miles above Earth.

Black hole observatory launched from Japan

17 February 2016 Stephen Clark

Japan launched a pioneering observatory with X-ray vision Wednesday to peer into the mysterious, light-starved neighbourhoods around black holes and study the genesis of galaxies and other cosmic mega-structures billions of light-years from Earth.

ASTRO-H satellite poised to enhance views of X-ray sky

7 February 2016 Astronomy Now

A new science satellite, the ASTRO-H X-ray Observatory, will blast into Earth orbit this month. The project, led by the Japan Aerospace Exploration Agency (JAXA), aims to collect a wealth of new data on everything from the formation of galaxy clusters to the warping of space and time around black holes. ASTRO-H boasts a sensitivity level that is orders of magnitude better than previous technology.

NASA applauds Japanese spacecraft Akatsuki’s rendezvous with Venus

10 December 2015 Astronomy Now

Japan’s Akatsuki spacecraft got another shot at Venus after a main engine failure during a crucial orbital-insertion burn meant it zipped past the planet on its first attempt in December 2010. The probe spent five years orbiting the Sun so it could catch up with Venus to try again on 7 December. The successful nail-biting manoeuvre is being celebrated by NASA scientists, eager to learn more about the atmosphere and climate of Earth’s enigmatic sister planet.