造價 100 億美元,而且在 2021 年底升空的 James Webb 太空望遠鏡(JWST),想必有著最高端先進的存儲吧?有些出乎意料的是,據 IEEE Spectrum,JWST 上只有個 68GB 的 SSD,足以儲存一天份的照片,但不會超出太多。…
美國與俄羅斯同意交換前往國際太空站的火箭座位
NASA 和 Roscosmos 雙方最終還是能好好坐上談判桌,對於交換火箭座位一事達成協議。
US and Russia agree to swap seats on space station flights
The US may have imposed economic sanctions against Russia over the war in Ukraine, but in space, the two countries are finding ways to continue working together. NASA and Roscosmos have signed a long-awaited agreement to swap seats on flights to the International Space Station. After the space shuttle program shut down, NASA relied on Russian Soyuz flights for years to ferry its astronauts to the orbiting lab. That is, until SpaceX succeeded in getting the Crew Dragon certified for human spaceflights. Now, the agency will again be securing seats on the Soyuz, while Russian cosmonauts will be flying aboard SpaceX Crew Dragon flights.
NASA said in a statement provided to The New York Times:
“Flying integrated crews ensures there are appropriately trained crew members on board the station for essential maintenance and spacewalks. It also protects against contingencies such as a problem with any crew spacecraft, serious crew medical issues or an emergency aboard the station that requires a crew and the vehicle they are assigned to return to Earth sooner than planned.”
In other words, the agreement will ensure that both the US- and the Russian-operated segments of the station will never be unmanned in case of canceled flights or other emergencies. The agency also said that the first integrated flights will take place in September, with Anna Kikina being the first Russian cosmonaut to fly on a Crew Dragon. She will be joined by NASA’s Nicole Mann and Josh Cassada, as well as Japan’s Koichi Wakata. Meanwhile, NASA astronaut Frank Rubio will be heading to the ISS aboard a Soyuz flight. In the spring of 2023, Russia’s Andrei Fedyaev and NASA’s Loral O’Hara will also be swapping seats. No money will change hands under the agreement, unlike in the past when NASA paid Roscosmos around $56 million a seat.
The announcement comes at the same time as Dmitry Rogozin’s dismissal as the head of Roscosmos. Rogozin had made controversial statements and decisions for years, but especially in recent months following Russia’s invasion of Ukraine. After the European Space Agency formally backed out of the ExoMars joint mission with Russia, for instance, Rogozin said he ordered the Roscosmos crew to stop working with the European-made robotic arm on the ISS. Roscosmos, under his leadership, also distributed images of cosmonauts holding the flags of pro-Russian separatists in Ukraine. NASA issued a statement afterward, saying it “strongly rebukes using the International Space Station for political purposes to support [the] war against Ukraine.”
The Times said Kremlin’s spokesperson clarified that Rogozin’s dismissal has nothing to do with his performance. According to Space, Latvia-based news outlet Meduza reported that Rogozin would be assigned as Putin’s chief of staff or as an administrator overseeing the Ukraine territories Russia had occupied, but neither rumor has been confirmed just yet.
James Webb telescope can take detailed photos of our own solar system’s planets and moons
Over the past few days, NASA has released stunning photos of nebulae, groups of galaxies and even the “deepest” view of the universe taken by the James Webb Space Telescope. Now, the agency has released images of something much closer to home that ever…
NASA 展出更多 James Webb 太空望遠鏡拍攝的驚人影像
繼早上的第一張照片之後,NASA 又為我們帶來了 James Webb 太空望遠鏡(JWST)先前預告的五張照片中剩餘的四張。
NASA reveals more stunning images from James Webb telescope
NASA has unveiled the first batch of full-color images that the James Webb Space Telescope has sent back to Earth. NASA, the European Space Agency, Canadian Space Agency and the Space Telescope Science Institute determined the initial targets to show o…
First James Webb Space Telescope image shows ‘deepest’ view of the universe ever
After 14 years of development and six months of calibration, the James Webb Space Telescope is finally ready to embark on its mission to probe the depths of our cosmos. On Monday, NASA and President Joe Biden shared the first colored image from the space telescope, showcasing a look at the early days of the universe.
According to NASA, “Webb’s First Deep Field” represents the sharpest and “deepest” image of the distant universe to date. What you see is a snapshot of a cluster of galaxies known as SMACS 0723 as they appeared 4.6 billion years ago. The combined mass of all the galaxies pictured acts as a gravitational lens, magnifying the much more distant celestial bodies seen in the background. Some of the galaxies have never-before-seen features that astronomers will soon study to learn more about the history of our universe. NASA notes Webb’s First Deep Field doesn’t represent our earliest look at the universe. Microwave telescopes like the Cosmic Background Explorer (COBE) captured snapshots closer to the Big Bang but did not offer a view of stars and galaxies like the one captured by Webb.
“Mr. President, if you held a grain of sand on the tip of your finger at arm’s length, that is the part of the universe that you’re seeing,” NASA administrator Bill Nelson told President Biden during Monday’s briefing. “Just one little speck of the universe.”
👀 Sneak a peek at the deepest & sharpest infrared image of the early universe ever taken — all in a day’s work for the Webb telescope. (Literally, capturing it took less than a day!) This is Webb’s first image released as we begin to #UnfoldTheUniverse: https://t.co/tlougFWg8Bpic.twitter.com/Y7ebmQwT7j
— NASA Webb Telescope (@NASAWebb) July 11, 2022
Getting to this historic moment has been a long road for NASA. When the JWST was first announced, the agency’s plan was to launch the telescope in 2007. After a redesign in 2005, NASA finally completed work on the project in 2016 and said the spacecraft would be ready to launch by 2018. In 2019, NASA completed assembly of the telescope, but then the pandemic hit, leading to further delays in testing and shipping. All told, those delays eventually led to the JWST project costing $10 billion.
NASA’s decision to name its most advanced space telescope ever after former agency administrator James Webb has also been a source of controversy. Before Webb oversaw the Mercury, Gemini and early Apollo programs at NASA, he worked at the US State Department during a time when the agency fired hundreds of gay and lesbian personnel. In September, NASA said it would not change the name of the JWST.
The image taken by the JWST compared to one taken by Hubble, of the galaxy cluster SMACS 0723.
It’s s a gravitational lens, showing us the light of galaxies that are far behind the cluster in arcs around it. I tried to orient them the same. LOOK AT THE DIFFERENCE. pic.twitter.com/8jphIUHRjn— Sophia Gad-Nasr (@Astropartigirl) July 11, 2022
The image Biden shared today is only the first of a handful of photos NASA plans to share this week from the JWST. The rest of the initial slate will arrive tomorrow morning at 9:45PM ET when NASA hosts a press conference with Webb leadership. Live coverage of the event starts at 10:30AM ET on NASA TV, YouTube, Twitter and Twitch.
President Biden will reveal the first James Webb Space Telescope image today at 5PM ET
NASA has decided to reveal the first James Webb Space Telescope (JWST) image today rather than waiting until tomorrow as planned, it announced in a tweet. President Joe Biden will do the honor at 5PM ET, with a live stream of the event available on NASA TV and images available simultaneously on NASA’s website.
We can’t contain the excitement for @NASAWebb‘s first full-color images!
On Monday, July 11 at 5pm ET (21:00 UTC), President Biden will unveil one of the space telescope’s first images of deep space as a preview of what’s ahead: https://t.co/kP5JdQEpVzpic.twitter.com/1wFZGkqrx8
— NASA (@NASA) July 11, 2022
Anticipation has been building for the first images, to say the least. NASA stoked that on Friday by announcing the targets to be shown, including the Carina and Southern Ring Nebulae, the gas exoplanet WASP-96b and a deep field view of the SMACS 0723 galaxy clusters. Only a select group of scientists and administrators have viewed the images so far. “What I have seen moved me, as a scientist, as an engineer, and as a human being,” said NASA deputy administrator Pam Melroy.
It appears that just a single image will be revealed today, but NASA didn’t say which one. The rest are still slated to arrive tomorrow, starting at 9:45 with remarks by NASA and Webb leadership. That’ll be followed by live coverage of the image release slated for 10:30 AM ET on NASA TV, YouTube, Facebook, Twitter, Twitch and Daily Motion.
ARRC 首枚可導控混合式火箭試射成功
在昨日(10 日)清晨 6 時 12 分,台灣陽明交通大學前瞻火箭研究中心(ARRC)成功發射了其 HTTP-3A 火箭的上級部份至 3 公里的高度,成為全球第一枚可導控的混合式火箭。這也是隸屬科技部的「短期科研探空火箭發射場域」啟用以來的首次發射活動。…
小行星 Bennu 的表面像「塑膠球池」一樣鬆散
科學家原本預期 Bennu 的表面材質應該和沙灘差不多,也就是說雖然表面上佈滿了沙塵,但整體來說是實心的。然而當 OSIRIS-REx 真正靠上去時,才發現它更像小朋友的球池一樣的感覺,除了石粒要大得多之外,OSIRIS-REx 差不多立即就陷了進去,完全沒有受到任何阻力。…