‘Christmas Star’ Will Appear in the Sky for the First Time After 800 Years

This winter solstice brings us a one-in-lifetime chance to witness a rare astronomical phenomenon called ‘Christmas star’ or, more scientifically, ‘Great conjunction’. Why Is the Great Conjunction So Rare? It seems that 2020 has more surprises to give, and not all of them are unfortunate. After Halloween's blue moon, there…

Astronomers Discover a Giant Underground Ocean on Jupiter’s Moon

Hubble space telescope has presented the strongest evidence yet that there is indeed an ocean underneath the surface of Ganymede, Jupiter’s largest moon. Researchers believe this ocean may contain more saltwater in it than all the water of the oceans on the Earth’s surface. Ganymede is the largest moon in…