In 2016, the Center for Planetary Science proposed a hypothesis arguing a comet or its hydrogen cloud were a strong candidate for the source of the "Wow!" Signal. Get to know how this alien life mystery was solved.
Its controllers on Earth tried a last-ditch wake up call that proved no avail.
Studies show that hundreds of massive centaur comets in our solar system might threaten life on earth.
Oxygen is said to have become part of the planet before its formation.
After a journey of more than four billion miles in 10 years, the European Space Agency's Rosetta spacecraft arrived at its destination on Wednesday for the first extended examination of a comet.
A comet-chasing spacecraft sent its first signal back to Earth on Monday, waking up after almost three years of hibernation. Scientists hope to use it to land the first space lander onto a comet.
Amino acids are essentially the building blocks of life and scientists have recently learnt there is a "cosmic factory" that produce these acids in our solar system, according to a new report.
New evidence suggest that the water on the moon came from the same source that supplied water on Earth.
NASA's Hubble Space Telescope has taken some of the clearest shots yet of Comet ISON on April 10 when the comet was at a distance of 386 million miles from the Sun (394 million miles from Earth).
The mystery surrounding the extinction of dinosaurs gained a new “twist” this week, when scientists announced that it might have been a comet what drove those ancient beasts to extinction, rather than an asteroid as previously thought.
With the possible appearances of two comets, stargazers are in for a fabulous treat this year. Comet Pan-STARRS will make its appearance in March. It will be visible for people across the northern Hemisphere. Comet ISON will appear in October 2013 and will move from the Southern Hemisphere across the Northern Hemisphere. Whether these comets will be a shiner or a dud is yet to be seen. It all depends on their capacity to tolerate the immense heat emanated from the sun. Comet ISON or C/2012 S1 (as it is officially known), was discovered by two Russian astronomers - Vitali Nevski and Artyom Novichonok Sept. 21, 2012.