2023-12-16 13:48:35时空
美国国家航空航天局的韦布揭示了银河系中心的新特征

The latest image from NASA's James Webb Space Telescope shows a portion of the dense center of our galaxy in unprecedented detail, including never-before-seen features astronomers have yet to explain. The star-forming region, named Sagittarius C (Sgr C),

阅读全文
2023-12-16 13:48:32时空
矮星系利用1000万年的安静期来制造恒星

If you look at massive galaxies teeming with stars, you might be forgiven in thinking they are star factories, churning out brilliant balls of gas. But actually, less evolved dwarf galaxies have bigger regions of star factories, with higher rates of star

阅读全文
2023-12-16 13:48:28时空
月球样本中检测到氢气,表明太空探索的资源可用性

U.S. Naval Research Laboratory (NRL) researchers have discovered solar-wind hydrogen in lunar samples, which indicates that water on the surface of the Moon may provide a vital resource for future lunar bases and longer-range space exploration. Space-base

阅读全文
2023-12-16 13:48:25时空
望远镜阵列探测到有史以来能量第二高的宇宙射线

In 1991, the University of Utah Fly's Eye experiment detected the highest-energy cosmic ray ever observed. Later dubbed the Oh-My-God particle, the cosmic ray's energy shocked astrophysicists. Nothing in our galaxy had the power to produce it, and the p

阅读全文
2023-12-16 13:48:22时空
在实验室里烹制的外星人薄雾,可以清晰地看到遥远的水世界

Scientists have simulated conditions that allow hazy skies to form in water-rich exoplanets, a crucial step in determining how haziness muddles observations by ground and space telescopes.

阅读全文
2023-12-16 13:48:20时空
寻找暗物质的新方法

The existence of Dark Matter is a long-standing puzzle in our universe. Dark Matter makes up about a quarter of our universe, yet it does not interact significantly with ordinary matter. The existence of Dark Matter has been confirmed by a series of astro

阅读全文
2023-12-16 13:48:16时空
太阳活动可能在明年达到峰值

Researchers at the Center of Excellence in Space Sciences India at IISER Kolkata have discovered a new relationship between the Sun's magnetic field and its sunspot cycle, that can help predict when the peak in solar activity will occur. Their work indic

阅读全文
2023-12-16 13:48:15时空
伽马射线脉冲星的里程碑激发了创新的天体物理学和应用

The U.S. Naval Research Laboratory (NRL), in conjunction with the international Fermi Large Area Telescope Collaboration, announce the discovery of nearly 300 gamma ray pulsars in the publication of their Third Catalog of Gamma Ray Pulsars. This milestone

阅读全文
2023-12-16 13:48:13时空
小行星Phaethon的组成

The asteroid that causes the Geminid shooting star swarm has also puzzled researchers with its comet-like tail. The infrared spectrum of rare meteorites helped to determine the composition of the asteroid.

阅读全文
2023-12-16 13:48:11时空
天文学家在另一个星系发现恒星周围的圆盘

In a remarkable discovery, astronomers have found a disc around a young star in the Large Magellanic Cloud, a galaxy neighbouring ours. It's the first time such a disc, identical to those forming planets in our own Milky Way, has ever been found outside

阅读全文
2023-12-16 13:48:08时空
新的天体物理学模型揭示了长伽马射线暴的额外来源

Cutting-edge computer simulations combined with theoretical calculations are helping astronomers better understand the origin of some of the universe's most energetic and mysterious light shows -- gamma-ray bursts, or GRBs. The new unified model confirms

阅读全文
2023-12-16 13:48:06时空
生命的基石可能在新的恒星和行星附近形成

While life on Earth is relatively new, geologically speaking, the ingredients that combined to form it might be much older than once thought. According to research published in ACS Central Science, the simplest amino acid, carbamic acid, could ha

阅读全文
 292   首页 上一页 16 17 18 19 20 21 22 23 24 25 下一页 尾页