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

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 ...

Venus, Mars, Jupiter and Saturn are visible to the naked eye this month and for part of February. Uranus and Neptune can be ...

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

The night sky is putting on a celestial show with a dazzling "planetary parade" featuring six major planets and a bonus comet.

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

Six planets are lining up across the night sky this month in a so-called "parade of planets".

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