Following is a summary of current science news briefs.
U.S. astronaut, two Russian cosmonauts return home from ISS
A U.S. astronaut and two Russian cosmonauts safely landed in Kazakhstan on Wednesday after leaving the International Space Station aboard the same capsule despite heightened antagonism between Moscow and Washington over the conflict in Ukraine. The flight — carrying NASA’s Mark Vande Hei and Russians Anton Shkaplerov and Pyotr Dubrov back to Earth — had been closely watched to determine whether escalating strife had spilled over into longtime cooperation in space between the two former Cold War adversaries.
Blue Origin’s 4th astro-tourism flight set to launch without big names
The fourth commercial flight of Jeff Bezos’ space tourism venture Blue Origin, offering short suborbital joyrides to well-heeled thrill-seekers and celebrity guests, has been delayed by two days because of poor weather conditions, the company said. Blue Origin’s New Shepard spacecraft was scheduled for liftoff on Tuesday from the company’s launch site in rural west Texas at 8:30 a.m. CDT (1330 GMT) with six would-be citizen astronauts strapped into the crew cabin atop the fully autonomous launch vehicle, standing nearly six stories tall.
Towering ice volcanoes identified on surprisingly vibrant Pluto
A batch of dome-shaped ice volcanoes that look unlike anything else known in our solar system and may still be active have been identified on Pluto using data from NASA’s New Horizons spacecraft, showing that this remote frigid world is more dynamic than previously known. Scientists said on Tuesday that these cryovolcanoes – numbering perhaps 10 or more – stand anywhere from six-tenths of a mile (1 km) to 4-1/2 miles (7 km) tall. Unlike Earth volcanoes that spew gases and molten rock, this dwarf planet’s cryovolcanoes extrude large amounts of ice – apparently frozen water rather than some other frozen material – that may have the consistency of toothpaste, they said.
S.Korea says it successfully test-fired first solid-fuel space rocket
South Korea’s military said it had successfully test-fired a solid-fuel space rocket for the first time on Wednesday, a step it says will help eventually launch a constellation of satellites to better monitor threats such as North Korea. The launch is the first such test since South Korea and the United States agreed last year to end decades of restrictions on the South’s ballistic missile and rocket development, and comes less than a week after North Korea conducted its highest missile test yet.
(With inputs from agencies.)
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