We've not actually "seen" the vast majority of exoplanets we've found orbiting distant stars. Instead, their existence has been inferred based on changes in the light of the stars that they orbit. That makes the 20 or so we have imaged directly exceptional.
But, if two researchers at the University of Arizona are right, we can scratch one of these examples off the list. They say that the supposed planet has vanished in more recent images, which indicates it was never actually there in the first place. Instead, they argue that we've been observing the debris of a smash-up between two very large asteroids.
In case you are keeping track:
Scientists get first look inside comet from outside our solar system - CNN
(CNN) When interstellar comet 2I/Borisov entered our solar system last year, this time capsule from another place in the universe opened and revealed information about its origin, according to new research.
Exoplanet Apparently Disappears in Latest Hubble Observations | NASA
Photos: Drawing the Solar System - Journal Star - Peoria, IL
In case you are keeping track:
Newly discovered six-planet solar system can help scientists understand early days of our
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Strange Object May Be Remains of a Planet Torn Apart
A long, thin object moving through our solar sy s tem may be the remains of a planet that was pulled apart, scientists say.
Researchers say the planet was likely destroyed long ago when it moved either too far from or too close to the star it once orbited.
The object is called 'Oumuamua, which means "messenger from afar" in the native Hawaiian language. A report on the recent findings appears in the journal Nature Astronomy .
Study Explains Unusual Shape and Movement of First Interstellar Visitor 'Oumuamua' | The Weather
For millions of years, different types of interstellar objects have been floating around in space. Space scientists have long-hypothesized the existence of such objects that aren't bound to anyone star-system but lacked direct visual evidence. It was only in October 2017 that scientists were able to get the sight of the first interstellar object 'Oumuamua' during the journey into our Solar System.
Back then, in 2017, this visitor's discovery came as a massive surprise for the space fraternity—as it was nothing like they ever imagined. Unlike the usual icy comets, which have familiar shapes, Oumuamua has an elongated shape, a cigar-like structure of about 400 metres, with a rocky surface.
Europe's planet-hunting CHEOPS telescope spies its 1st alien worlds | Space
The probe, called the Characterizing Exoplanet Satellite (CHEOPS), launched into Earth's orbit last December and has just completed a three-month commissioning phase. During that time, the European Space Agency (ESA) tested out CHEOPS' instruments and even used the telescope to observe a few exoplanets , or planets that orbit stars beyond our solar system.
Video: Europe's new exoplanet hunter begins star observations
Related: 7 ways to discover alien planets
Happening on Twitter
WHAT'S UP, DOC? This is the closest I have seen the #LooneyTunes have the look & feel of the classic cartoons! Can'… https://t.co/yNv0wx7kfm BlackNerd (from Acme Acres, CA) Tue Apr 21 17:43:55 +0000 2020
You may have seen looking a little bit different recently 🤔 All of our crews are wearing PPE for every patient we… https://t.co/yExlT8EuuI swasFT (from South West of England) Mon Apr 20 10:32:27 +0000 2020
Now USD 0.1 per barrel. It is historic. We have not seen this before. Perhaps we may not see this again. ashishchauhan (from Mumbai, Maharashtra) Mon Apr 20 18:07:45 +0000 2020
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