搜索结果: 31-45 共查到“国际动态 天文学”相关记录3291条 . 查询时间(0.403 秒)
Using telescopes, tools and spaces at Brown, members of the University community capture awe-inspiring photos of the universe in spectacular fashion.
Astronomers detect the closest example yet of a black hole devouring a star（图）
黑洞 吞噬恒星 红外天文学
<
2023/6/9
Once every 10,000 years or so, the center of a galaxy lights up as its supermassive black hole rips apart a passing star. This “tidal disruption event” happens in a literal flash, as the central black...
New black hole images reveal a glowing, fluffy ring and a high-speed jet（图）
黑洞图像 高速喷气机 等离子体物理学
<
2023/6/9
In 2017, astronomers captured the first image of a black hole by coordinating radio dishes around the world to act as a single, planet-sized telescope. The synchronized network, known collectively as ...
For most people, the night sky conjures a sense of stillness, an occasional shooting star the only visible movement. A conversation with Rishabh Datta, however, unveils the supersonic drama crashing a...
西班牙参与建设欧洲超大望远镜
西班牙 欧洲 超大望远镜
<
2024/1/17
西班牙科学与创新部宣布与欧洲南方天文台（ESO）签署协议，参与建设欧洲超大望远镜（E-ELT），并将为此投资3700万欧元。2023年，西班牙将额外投入近730万欧元用于建设这一基础设施。西班牙认为此项投资将促进西班牙开辟新市场，加强西班牙在光学、机械和航空航天领域的高科技发展。
Before embarking on its journey, critical components of ESA’s interplanetary mission were tested in the only facility on Earth capable of replicating Jupiter’s harsh radiative environment.
New findings reveal the most detailed mass map of dark matter（图）
Astronomy Physics Research
<
2023/6/29
For millennia, humans have been fascinated by the mysteries of the cosmos. From ancient civilizations such as the Babylonians, Greeks, and Egyptians to modern-day astronomers, the allure of the starry...
An accretion disk is a colossal whirlpool of gas and dust that gathers around a black hole or a neutron star like cotton candy as it pulls in material from a nearby star. As the disk spins, it whips u...
国外开展对双小行星重定向测试的研究
双小行星 重定向测试 小行星相撞
<
2024/1/17
西班牙科研人员在《自然》上发表文章，分析了美国国家航空航天局(NASA)的小行星相撞实验，有助对量化双小行星重定向测试（DART）碰撞产生的脉冲因子β和相关动量变化的研究。
詹姆斯·韦伯太空望远镜捕捉到太空冰的成分
詹姆斯·韦伯太空望远镜 太空冰 冰彗星
<
2024/1/17
近期，一个国际科研团队在美国航天局（NASA）的詹姆斯·韦伯太空望远镜（JWST）上获得了30小时观测时间。所获取的图像和数据使科学家们能够识别出以前从未观察到的致密、冰冷的太空云中的分子，包括甲烷、乙醇和含有氮和硫的小化合物，这些分子是构成生命基石的材料。研究结果发表在《自然·天文学》期刊上。
The Big Bang at 75（图）
Physics Philosophy 天体物理学
<
2023/6/29
There was a time before time when the universe was tiny, dense, and hot. In this world, time didn’t even exist. Space didn’t exist. That’s what current theories about the Big Bang posit, says Vijay Ba...
Gas giants orbiting our sun show a clear pattern; the more massive the planet, the lower the percentage of “heavy” elements (anything other than hydrogen and helium) in the planet’s atmosphere. But ou...
Researchers propose a list of Venus-like planets for James Webb Space Telescope to target（图）
金星 行星物理学 詹姆斯韦伯太空望远镜
<
2023/6/26
A team of researchers, including Brown planetary scientist Jim Head, propose using the James Webb Space Telescope to look at five planets in the Venus Zone, a search that could reveal valuable insight...
Detected in 2017 and observable for only a few weeks, the first known interstellar object to pass through the solar system confounded astronomers, sparking speculation it could be a giant snowflake, h...
Who, What, Why: Sarah Kane finds ways to represent data as sound（图）
Astronomy 银河系 天体物理学 天文观测
<
2023/6/29
Sarah Kane, a fourth-year physics major in the College of Arts and Sciences, started her research in astronomy with Bhuvnesh Jain, the Walter H. and Leonore C. Annenberg Professor, and has since gone ...