A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope.

"We would like to understand the difference between these systems, which holds the clue to understand just how many cosmic ...

中国科学院国家天文台大视场巡天与星系物理团组联合暗能量光谱巡天（DES）国际合作团队，首次探测到两例Lyα“变脸”类星体（Changing-look Quasars），这是迄今为止发现的最高红移“变脸”源。

They found a type of ultra-powerful galaxy that gobbles up everything around it. Its energy is so intense that, if it were ...

Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is ...

Using early data from the Dark Energy Spectroscopic Instrument (DESI), a team of scientists have compiled the largest sample ...

"Interestingly, the quasar powering this massive radio jet does not have an extreme black hole mass compared to other quasars." ...

DESI, which will be scanning the sky for five more years, is expected to observe around 40 million galaxies and quasars ...

These jets become elusive the farther back in time astronomers try to look because of the so-called cosmic microwave background. The ancient radiation, the earliest fossil of light from 380,000 years ...