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Betelgeuse – Red Supergiant
Betelgeuse is the star that represent's Orion's right shoulder. It's also one apex of the Winter Triangle and marks the center of the Winter Hexagon. Very bright, distinctly red, and part of the hunter's commanding presence, you can find it easily in the winter sky.
Heroes of the Revolution – Doodles
For umpteen centuries people thought the Earth was the center of the cosmos. In the 2nd century AD, this view was the foundation for Ptolemy's Almagest and it persisted into the 18th century. But it wasn't unchallenged, there was a revolution in the making.
Fascinating Facts about Saturn's Moons
Saturn lies in the outer Solar System, ten times farther away from the Sun than Earth is. It's best known for its fabulous ring system, but it also has an amazing system of moons including ring shepherds and a moon that could possibly sustain primitive life.
European AstroFest 2018 – Astronomy Potpourri
European AstroFest 2018, billed as “The Universe under One Roof”, was held in the Kensington Conference and Events Centre in London. The conference program included talks on dark matter, gravitational waves, asteroid impacts and wintering in White Mars.
European AstroFest 2018 - Space Missions
For two days there was no need for a telescope to view the Universe, though you might have decided to buy one for later on. The Universe came to London in the form of European AstroFest – all under one roof in the Kensington Conference and Events Centre. Here is Part 1 of some highlights.
New Year's Day to Candlemas – Quiz
Exploration, famous birthdays and ancient festivals in the time between January 1st and Candlemas at the start of February. Here's a little quiz for you that picks out some highlights in this period. How many do you recognize?
Canis Minor – the Lesser Dog
Canis Minor is one of Orion's hunting dogs. It trots along behind its master unperturbed by the unicorn (Monoceros), and leaving the hare (Lepus) to the greater dog (Canis Major) to chase. It's a small constellation with not much more to offer than one bright star, but it has a long history.
Five Astronomy Non-events of 2017
The year 2017 was favored with dire predictions of destructive giant impacts, and the 15 days of darkness “forecast by NASA” was back again. Unusually, there was no sign of the “Mars will look as big as the full Moon” that's been a regular since 2003. But there's also a new non-event.
Top Ten Astronomy Stories 2017
2017 was an exciting one for astronomy, full of interesting events and discoveries. There was a fantastic solar eclipse that swept across North America, a star system with 7 Earth-sized planets, a quasar from the early Universe, Cassini's Grand Finale, a dwarf planet with rings, and much more.
When Does the New Year Begin
Imagine midnight on December 31 – fireworks, friendship and celebration greet a new year. But only if you follow the Gregorian calendar. In the past, a year often didn't start on January 1, and for nearly two billion people it still doesn't. So when does a new year begin?
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