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A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...
The Milky Way could have many more satellite galaxies than scientists have previously been able to predict or observe, ...
A renowned physicist believes he's cracked the mystery of where a giant unidentified object hurtling through our solar system ...
Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...
What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.
Two international teams zoned in on a potential answer to a decades-long mystery surrounding ephemeral cosmic X-rays.
The awe-inspiring distances of the cosmos are hard to visualise, so how can we be certain we are measuring them correctly?
For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...
Six years ago, a Dutch-led telescope on the Chinese Chang’e-4 demonstrated that it is possible to do radio astronomy from ...
A team led by the Italian National Institute for Astrophysics discovered the most distant known fossil galaxy — a relic of ...
The Earth, the solar system, and the entire Milky Way are stranded near the centre of a giant, mysterious hole where the ...
Dr. Caitlin Casey, an observational astronomer, has recently joined the physics department at UC Santa Barbara. She co-leads the C.O.S.M.O.S. collaboration — a project distinguished by its deep ...
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