17 May 2019
First science results released on Ultima Thule
..., Ultima Thule comes from a region known as the Kuiper belt; a broad, ring-shaped structure in the outer Solar System beyond Neptune’s orbit, which contains chunks of primitive icy material thought to be the building blocks of planets. Ultima...
18 September 2019
Researchers calculate feasibility of sending a probe to C/2019 Q4 (Borisov)
...possibly the first confirmed interstellar comet to visit the Solar System – hit the headlines last week, astronomers using ...second such interstellar object to be identified whizzing through the Solar System; the first, 'Oumuamua, was spotted in 2017. ...
20 April 2020
New research shows interstellar visitor 21/Borisov is not your average comet
... it another way, CO is more than three times higher than previously measured for any comet in the inner (<2.5 au) Solar System. Because the comet is so rich in CO, it likely originated in a very cold region probably beyond the CO ice-line in a region...
22 December 2021
Scientists present the first-ever analysis of samples retrieved from Ryugu
...volatile-rich species that likely originated from the outer Solar System. Overall, say the international teams of scientists behind...the cooling protoplanetary disk which eventually became our Solar System. Isotopic compositions of CAIs show that they ...
17 October 2019
Hubble gets a good look at interstellar visitor Comet 2I/Borisov
... interstellar visitor, an object dubbed ‘Oumuamua, swung within 38 million kilometres of the Sun before racing out of the Solar System. “Whereas ‘Oumuamua looked like a bare rock, Borisov is really active, more like a normal comet. It’s a puzzle why...
February 2016
How to Build Planets
...the formation of discs that can rival the size of the Solar System The origins of a protoplanetary disc start in the relatively small ... of discs that can rival the size of the Solar System and above, suggesting that such discs are initially quite...
