Comets
A brief history of Ariane 5 launches with science missions onboard  PHYS.ORG · 2 weeks
If it wasn't for launch capabilities we would never have delved deep into the echo of the Big Bang nor lived out the adventures of Rosetta... more
Image: Hubble sees a galaxy bucking the trend  PHYS.ORG · 2 weeks
This luminous orb is the galaxy NGC 4621, better known as Messier 59. As this latter moniker indicates, the galaxy is listed in the famous catalog of deep-sky objects compiled by French... more
Hyperactive Comets Contain ‘Ocean-Like’ Water  SCI-NEWS.COM · 2 weeks
NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA) observed the hyperactive Jupiter-family comet 46P/Wirtanen as it made its closest approach to Earth in December 2018. Now the... more
How Did Earth Get Its Water? Scientists Now Look to 'Hyperactive' Comets for Clues  SPACE.COM · 3 weeks
Fresh observations of Comet 46P/Wirtanen, which swung by Earth in December 2018, suggest that more of Earth's water came from... more
Comet inspires chemistry for making breathable oxygen on Mars  SCIENCE DAILY · 3 weeks
Researchers have demonstrated a new reaction for generating oxygen that could help humans explore the universe and perhaps even fight climate change at home. more
Giant planets and comets battling in the circumstellar disk around HD 163296  PHYS.ORG · 3 weeks
In a study appearing today in the Astrophysical Journal, an INAF-lead team of researchers explored whether the anomalous features in the dust and gas... more
Stolen comets and free-floating objects  PHYS.ORG · 3 weeks
Our solar system may contain alien comets that were stolen from another star flying past 4.5 billion years ago. Far away in a distant cluster of young stars, a similar close encounter might have also sent the inter-stellar... more
Comet Provides New Clues to Origins of Earth’s Oceans  ASTRO WATCH · 3 weeks
The mystery of why Earth has so much water, allowing our “blue marble” to support an astounding array... more
A family of comets reopens the debate about the origin of Earth's water  SCIENCE DAILY · 3 weeks
Researchers have found that one family of comets, the hyperactive comets, contains water similar to terrestrial water. more
Comet inspires chemistry for making breathable oxygen on Mars  PHYS.ORG · 3 weeks
Science fiction stories are chock full of terraforming schemes and oxygen generators for a very good reason—we humans need molecular oxygen (O2) to breathe, and space is essentially devoid of... more
Three Exocomets Discovered Around the Star Beta Pictoris  ASTRO WATCH · 3 weeks
Three extrasolar comets have been discovered around the star Beta Pictoris, 63 light years away, by the University of Innsbruck.... more
A family of comets reopens the debate about the origin of Earth's water  PHYS.ORG · 4 weeks
Where did the Earth's water come from? Although comets, with their icy nuclei, seem like ideal candidates, analyses have so far shown... more
Three exocomets discovered around the star Beta Pictoris  SCIENCE DAILY · 4 weeks
Three extrasolar comets have been discovered around the star Beta Pictoris, 63 light years away. Analysis of data from the current NASA mission TESS has revealed the objects for the first time... more
Three exocomets discovered around the star Beta Pictoris  PHYS.ORG · 4 weeks
Just about a year after the launch of the NASA mission TESS, the first three comets orbiting the nearby star Beta Pictoris outside our solar system were discovered with data from the... more
Asteroidthreats.com - New Site about Hazardous Asteroids Launched  ASTRO WATCH · 4 weeks
Astrowatch.net team is proud to announce the launch of a new website dedicated to asteroids, comets, meteroids and other objects... more
TESS Detects Exocomets in Beta Pictoris System  SCI-NEWS.COM · 4 weeks
NASA’s Transiting Exoplanets Survey Satellite (TESS) has spotted the long tails of extrasolar comets orbiting the very young star beta Pictoris. Beta... more
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