Connect with us

Science

SpaceX carries NASA astronaut mission home with safe water landing – Kathimerini English Edition

Published

 on


Four astronauts inside a capsule built by SpaceX streaked across the Florida night sky like a meteor before splashing down in the Gulf of Mexico on Monday night. The water landing capped an eventful six-month stay on the International Space Station.

The space travelers were part of a mission called Crew-2: Shane Kimbrough and Megan McArthur of NASA; Akihiko Hoshide of JAXA, Japan’s space agency; and Thomas Pesquet of the European Space Agency.

“It’s great to be back to planet Earth,” Kimbrough, Crew-2’s commander, said to SpaceX mission control from inside the capsule after it and four large parachutes fluttered down into still waters near Pensacola, Florida. He and his fellow astronauts left the space station at 2.05 p.m. Eastern time Monday afternoon, and returned to Earth at 10:33 p.m.

Two parachutes deployed as planned to brake the capsule’s speed, then four more replaced them, with one remaining scrunched for nearly a minute before inflating. All chutes eventually deployed, plunking Crew Dragon into calm waters.

“The return looked spotless,” Kathy Lueders, NASA’s space operations chief, said in remarks on the agency’s livestream. She said engineering teams will examine the one “laggy” chute that did not immediately unfurl, adding that it was “behavior we’ve seen multiple times in other tests.”

The capsule, nicknamed Endeavour, bobbed in the ocean as recovery teams swarmed around and lifted it onto a recovery ship. Within about an hour of the spacecraft’s landing, crews helped the smiling astronauts out of the capsule one by one and onto stretchers as they started reacclimating to Earth’s gravity.

The trip was the fourth safe return to Earth for Crew Dragon, a gumdrop-shaped astronaut capsule developed by SpaceX as a replacement for the space shuttle with roughly $3 billion in funding from NASA. The spacecraft is expected to save the agency money, as NASA is no longer required to buy expensive seats for its astronauts on Russia’s Soyuz rockets.

The journey was not without difficulties. Last week, NASA ordered the crew not to use the capsule’s toilet for the duration of their time on board. Engineers on the ground first detected a leaking toilet tube in another SpaceX capsule in September. The malfunction was confined to a compartment within the spacecraft’s floor, and did not affect the cabin.

But NASA declared the toilet of the Crew Dragon at the space station to be off-limits until it could be fixed. That meant that the crew either had to hold it, or use astronaut-grade diapers built into their flight suits as a contingency.

“Of course that’s suboptimal, but we are prepared to manage that in the time that we’re onboard Dragon on the way home,” McArthur, the Crew-2 mission pilot, said during a news conference Friday.

The crew managed many other challenges and responsibilities during their time in orbit.

Shortly after Crew-2 launched in April, SpaceX mission control alerted them that a piece of space debris was projected to whiz by the capsule. The astronauts were instructed to “immediately” get back in their flight suits and lower their helmet visors.

Nothing ever came close to the capsule, and the crew safely reached the space station on April 24.

Days later, US Space Command, which tracks objects in orbit, determined that the alert was the result of a “reporting error” and “that there was never a collision threat because there was no object at risk of colliding with the capsule.” Still, the incident renewed discussion about the growing threat of space debris and other clutter in low-Earth orbit.

In July, Russia launched a new science module to be attached to the space station’s Russian segment. Just after it docked, the module, named Nauka, erroneously fired a set of thrusters for roughly 15 minutes, spinning the football-field-size laboratory 1 1/2 revolutions before coming to a stop upside down.

The accident sent mission control teams in Houston and Moscow scrambling to get the station back in its normal position. The Crew-2 astronauts rushed back into their Crew Dragon capsule in case they needed to escape.

“In case something really bad did happen, we were ready to go and undock, if that was necessary,” Kimbrough said during Friday’s news conference. “Of course it wasn’t, thank goodness.”

A similar incident occurred in October involving another Russian spacecraft attached to the space station, although it seemed less severe than the first one.

While Crew-2 and its fellow space station occupants encountered hazards in orbit, they also kept busy with their typical duties of research and maintenance.

One component of their work even included some play: a taco night spiced up with freshly harvested chiles. The peppers were leftovers from a study examining crop cultivation in space. McArthur, who combined the chiles with fajita beef, rehydrated tomatoes and artichokes, called them the “best space tacos yet.”

The astronauts worked on hundreds of scientific investigations during their six-month stay aboard the orbital laboratory, from ultrasonic tweezers, which use sound to move small objects, to exploring real-time protein crystal growth under a microscope as part of a study into new drugs that can treat diseases.

The Crew-2 astronauts also witnessed the making of a feature length movie backed by Russia’s space agency, Roscosmos. A Russian actress and a director launched to the space station on Oct. 5 for a 12-day shoot aboard the station for their movie, “The Challenge.” The film is about a mission to rescue an ailing astronaut, who was played by Oleg Novitsky, an actual Russian astronaut on the station.

When the Crew-2 astronauts departed Monday, only a single crew of three astronauts remained on the space station. It’s a small head count for the orbital lab, which has had as many as 13 astronauts aboard at once, but usually has seven crew members aboard these days. The last time the space station held just three astronauts was in April 2020.

Mark Vande Hei, a NASA astronaut, and two Russian astronauts, Anton Shkaplerov and Pyotr Dubrov, will hold down the fort for at least four days until four more astronauts from NASA and SpaceX’s Crew-3 mission arrive Thursday at 7.10 p.m. Eastern time. Their arrival has been delayed by weather as well as what NASA described as one astronaut’s “minor medical issue,” which it said was unrelated to Covid-19.

[This article originally appeared in The New York Times.]

Adblock test (Why?)



Source link

Continue Reading

Science

Stargazer in Italy spots NASA's DART asteroid impact probe in night sky after launch – Space.com

Published

 on


An Italian telescope captured NASA’s asteroid-smashing mission shortly after its launch into space this week. 

A new image and video, taken by the Elena telescope located in Ceccano, Italy, shows NASA’s Double Asteroid Redirection Test mission, also known as DART, separated from the second stage of the Falcon 9 rocket which launched the spacecraft from Vandenberg Space Force Base in California on Tuesday (Nov. 23 PST, or early Nov. 24 EST) . The mission sent DART on a 10-month-long journey to a binary asteroid system called Didymos

Both DART and the booster can be seen in this image (above), which was taken remotely with a single 30-second exposure, astronomer Gianluca Masi said in a statement. Masi runs the Virtual Telescope Project 2.0, which includes the Elena telescope.

The image was taken remotely 10 hours after DART lifted off, Masi said.

Related: NASA’s DART asteroid-impact mission explained in pictures

NASA’s DART spacecraft and a Falcon 9 second stage booster that launched it can be seen as two small dots at the center of this image capture a few hours after the mission’s launch. (Image credit: The Virtual Telescope Project)

The robotic Elena telescope automatically tracked DART and the booster, both of which are visible at the center of the image as bright dots. The short white lines surrounding those two dots are stars in the background. When the image was taken, DART was about 93,000 miles (150,000 kilometers) from Earth, about half the distance between our planet and the moon, Masi said. 

In addition to the static image, the telescope also captured a short video sequence, which shows the separated second-stage booster blinking. This blinking, Masi said, is caused by the booster spinning. 

The pioneering DART mission will conduct a first-of-its-kind test that will show if and how a spacecraft can change the path of an asteroid by smashing into it. In September of next year, the spacecraft will ram into a 525-foot-wide (160 meters) asteroid “moonlet” known as Dimorphos, which orbits the larger space rock Didymos. The goal of the experiment is to alter Dimorphos’ orbit around Didymos, shortening it by several minutes, to prove that such an intervention could divert the trajectory of a large asteroid if, in the future, one were to be on a path that threatened planet Earth.

Related stories:

DART also carries a small cubesat called LICIACube, from Italy’s space agency, which will be released 10 days ahead of DART’s self-destructive impact and film the aftermath of the crash. 

In 2024, the European Space Agency (ESA) will also send a larger surveyor spacecraft called Hera to the asteroid system that will analyze the crater and gather data about Didymos’ and Dimorphos’ physical structure and chemical composition. By then, astronomers will have known whether DART deflected Dimorphos, thanks to ground-based observations. 

Follow Tereza Pultarova on Twitter @TerezaPultarova. Follow us on Twitter @Spacedotcom and on Facebook

Adblock test (Why?)



Source link

Continue Reading

Science

Russia’s new module on ISS to offer docking opportunity for foreign spacecraft in future – TASS

Published

 on


KOROLYOV /Moscow Region/, November 26. /TASS/. NASA and Roscosmos have begun talks on harmonizing technical standards of Crew Dragon spaceships with the Russian module and Russian spacecraft with the US segment on the International Space Station (ISS), Roscosmos Chief Dmitry Rogozin said at the Flight Control Center on Friday.

“NASA and Roscosmos have launched talks on harmonizing technical standards that will allow not only Crew Dragon or Russian spaceships to dock with the American segment but, in general, this docking is possible and will require an adapter,” Rogozin said, replying to a question about whether US spacecraft would be able to dock to Russia’s new Prichal nodal module.

The Prichal module’s docking completed the formation of the ISS Russian segment, the Roscosmos chief said.

The Prichal nodal module will also serve as a prototype for similar modules for the future Russian Orbital Service Station (ROSS) that will be the ‘joints’ of its space body, Rogozin said.

“This is one of the most important prototypes for creating the ROSS whose architecture will differ from the ISS. It should employ the principle of eternal service life: modules that use up their potential will be detached from the station and it will be augmented in a different direction with the help of such nodal modules that will serve as some joints of a new and large metal design engineering body,” Rogozin said.

A Soyuz-2.1b carrier rocket with the Progress M-UM space freighter and the Prichal nodal module blasted off from Launch Pad No. 31 (‘Vostok’) of the Baikonur spaceport to the orbital outpost at 16:06 Moscow time on November 24. The flight to the orbital outpost took two days. The Prichal module docked with the Russian Nauka research lab on November 26.

The new module will boost the capabilities of Russian spaceships, including the latest Oryol spacecraft, to dock with the ISS. Overall, the new module will have five docking ports. The first docking of a manned spacecraft with the Prichal module is scheduled for March 18.

The spacecraft-module also delivered about 700 kg of various cargo to the ISS, including equipment and consumables, water purification, medical control including sanitary and hygienic supplies, maintenance and repair tools, as well as standard food rations for the 66th Main Expedition crew.

Adblock test (Why?)



Source link

Continue Reading

Science

Italy and France sign agreement on space launchers

Published

 on

 Italy and France clinched an accord on Friday to strengthen their cooperation on space launchers as part of a broader bilateral treaty.

Among the goals laid out in the bilateral treaty were pledges to reinforce military connections, including at an industrial level, and work together in the space sector.

The two countries agreed to work together on liquid and solid propulsion and press ahead with the development of launchers Ariane 6 and Vega C, Italy’s innovation minister and France’s economy minister said in a joint press release.

Launchers are the second largest area of space-manufacturing activity in Europe after commercial satellites, according to the European Space Agency (ESA).

For the development of Ariane 6, ESA is working with more than 600 companies in 13 European countries, led by prime contractor ArianeGroup, which is a joint venture of Airbus and Safran.

ESA is overseeing procurement and the architecture of the overall Vega-C launch system, while industry is building the rocket with Italy’s Avio as prime contractor.

 

(Reporting by Francesca Landini; Editing by Frances Kerry)

Continue Reading

Trending