Search results for comets

Biotechnology Feb 7, 2020

New platform for composing genetic programs in mammalian cells

A new synthetic biology toolkit developed at Northwestern University will help researchers design mammalian cells with new functionalities.

Space Exploration Feb 6, 2020

Rosetta data reveals process behind color-changing chameleon comet

A grand synthesis of Rosetta data has shown how its target comet repeatedly changed color during the two years it was watched by the spacecraft. The chameleon comet's nucleus became progressively less red as it made its close ...

Astronomy Jan 21, 2020

Flight through the comet Chury's dust cloud resolves chemical mystery

Under the leadership of astrophysicist Kathrin Altwegg, Bernese researchers have found an explanation for why very little nitrogen could previously be accounted for in the nebulous covering of comets: the building block for ...

Astronomy Jan 17, 2020

Here and gone: Outbound comets are likely of extra-solar origin

Astronomers at the National Astronomical Observatory of Japan (NAOJ) have analyzed the paths of two objects heading out of the Solar System forever and determined that they also most likely originated from outside of the ...

Astronomy Jan 15, 2020

Astronomers reveal interstellar thread of one of life's building blocks

Phosphorus, present in our DNA and cell membranes, is an essential element for life as we know it. But how it arrived on the early Earth is something of a mystery. Astronomers have now traced the journey of phosphorus from ...

Space Exploration Dec 20, 2019

Capturing alien comets: Simulating rogue bodies on their journey through the solar system

There should be interstellar comets hiding in our solar system after making a journey of many light-years. Maybe we have already seen one but believed it was a "normal" comet formed in the solar system, according to Tom Hands, ...

Space Exploration Dec 12, 2019

Interstellar comet 2I/Borisov swings past sun

When astronomers see something in the universe that at first glance seems like one-of-a-kind, it's bound to stir up a lot of excitement and attention. Enter comet 2I/Borisov. This mysterious visitor from the depths of space ...

Astronomy Dec 3, 2019

NASA's exoplanet-hunting mission catches a natural comet outburst in unprecedented detail

Using data from NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers at the University of Maryland (UMD), in College Park, Maryland, have captured a clear start-to-finish image sequence of an explosive emission ...

Space Exploration Nov 27, 2019

New image offers close-up view of interstellar comet

Yale astronomers have taken a new, close-up image of the interstellar comet 2l/Borisov.

Space Exploration Nov 19, 2019

Subaru telescope detects the mid-infrared emission band from complex organic molecules in comet 21P/Giacobini-Zinner

Using the Cooled Mid-Infrared Camera and Spectrometer (COMICS) on the Subaru Telescope, astronomers have detected an unidentified infrared emission band from comet 21P/Giacobini-Zinner (hereafter, comet 21P/G-Z) in addition ...

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