Sentences with phrase «gas around comet»
Those interactions could explain the surprising abundance of O2 detected in the fuzzy envelope of gas around comet 67P / Churyumov - Gerasimenko in 2015 (SN: 11/28/15, p. 6), researchers report May 8 in Nature Communications.
https://www.sciencenews.org/ Not exact matches
Earth and the other planets of our solar system suffer occasional impacts when comets are disturbed from their orbits around the sun by the gravity of nearby stars and gas clouds.
I love the beautiful diffraction spikes around Mirfak, and the ghostly glow of the expanding gas cloud from the comet's paroxysms.
«The icy small bodies warm up as they approach the Sun, and the ice sublimes to form a coma [a dense cloud of gas and dust particles around a nucleus] and often a tail, making the comets observable,» she explained.
When comets approach the Sun, these ices heat up, eventually turning to gases that jet out into space together with dusty material to form a head or coma around the cometary nucleus.
Debris disks are found around stars that have shed their dusty, gas - filled protoplanetary disks and gone on to form planets, asteroids, comets, and other planetesimals.
The mission, perhaps the most ambitious one ever undertaken by the European Space Agency, will now join the comet as it begins a lap around the sun, heats up, and releases stores of ice in a cloud of dust and gas.
According to the space agency, astronomers exploring a disk of gas and dust around a nearby star uncovered a compact cloud of poisonous gas formed by constant collisions among the comet - like bodies.
On November 4, 2010, NASA's EPOXI mission flew at a close distance of around 435 miles (or 700 kilometers) by Comet Hartley 2, which was then an active short - period comet with jets of gas and dust coming off its sun - lit end and which completes an orbit in less than 6.5 years.
As a comet approaches the Sun, a small fraction of the snowball (or nucleus) evaporates, forming a gas and dust cloud, called a coma, around the nucleus.
After ejection, the moon could either have crashed into another Solar System object (like a neighboring gas giant) or been sent into an elongated orbit around the Sun like a comet or into interstellar space (Boué and Laskar, 2009; and Ker Than, New Scientist, December 4, 2009).