A supernova in our lifetimes is not impossible.
The famous star Betelgeuse is dimmer than anyone has seen it in a century.
This is the very finest test of vision in all the heavens.
Find out why the coming year will be so remarkable.
Folklore says that such a ring around the Sun or Moon portends the arrival of a storm within 24 hours. There’s truth to that.
Astronomers use the letter X followed by a constellation name to represent objects emitting X-rays — a rarity in the cosmos.
Moonlight is at its brightest. Let’s celebrate that by giving it some attention during this lunation. Copernicus, a magnificent, isolated crater with terraced walls, is regarded by many as the Moon’s most handsome feature. It’s now at its best.
Consider Andromeda: When our sister galaxy’s one trillion stars collide with us in four billion years, no stars will make contact and nothing bad will happen.
Monday, Nov. 11: It lasts over seven hours, with the middle of the transit happening at around 10:30 a.m., when the Sun isn’t too low. The Mid-Hudson Astronomy Association will set up the correct instruments.
Since cold air can hold just one-thirtieth as much water vapor as very warm air, the substance we breathe is becoming desiccated.