Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.

Astronomer Dean Regas gives us the lowdown on the best things to look out for this winter, from a “planet parade” to the ...

Venus, Saturn, Jupiter and Mars will appear to line up and be bright enough to see with the naked eye in the first few hours ...

Six planets grace the sky this month in what’s called a planetary parade. Venus, Mars, Jupiter and Saturn are visible to the naked eye in January and for part of February.

NASA and famed astronaut Buzz Aldrin say stargazers have the best chance of catching a glimpse of Saturn and Venus in ...

Comet ATLAS hit a maximum magnitude of -3.4 during its close encounter with the sun, just shy of the brightness of Venus in ...

You won't see a majestic line of planets on Jan. 25 the way people on social media promise, but you will see four bright ...

Green predicts the comet could reach a maximum magnitude of -3.2, placing it between the brightness of Jupiter and Venus, ...

Greetings, stargazers. A prominent winter constellation is Taurus, the bull. It is particularly easy to find this month, because Jupiter is right in the middle of it. At magnitude -2.68, Jupiter will ...

It’s a bird! It’s a plane! No, it’s an asteroid-comet hybrid called a ‘centaur’ that might not even be that. Asteroids are ...