April skies feature close planet pairings, a bright meteor shower, and stunning views of the ancient star cluster M3.

A pair of white dwarfs, located just 150 light-years from Earth, appears doomed to die in a type 1a supernova that will shine ...

On any given night, weather permitting ... Venus and Mercury orbit closer to the sun than Earth, meaning they orbit much quicker than other planets, according to NASA. When was the last time ...

Related: Night sky, April 2025 ... Mars continues to recede from Earth, so consequently the planet continues to gradually fade. Beginning April at magnitude +0.4, by month's end this orange ...

If the Moon were to suddenly vanish from the solar system, our home planet would suffer devastating consequences ...

Earth, our home planet, is a world unlike any other ... Earth rotates on its axis every 23.9 hours, defining day and night for surface dwellers. This axis of rotation is tilted 23.4 degrees ...

We can see at least one planet from Earth almost every night, provided skies are clear, and up to two or three after sunset relatively frequently. The ability to spot four or five planets at the ...

The eight planets travel around the Sun at different speeds. These lines show us the paths they take which we call orbits. On a clear night from Earth we can sometimes see the five planets which ...

Half of the Earth is always facing the Sun, meaning it is lit up. The other half is in darkness until the planet turns around. That’s why we have day and night! SEYMOUR: The Sun keeps us warm ...

Since Venus and Mercury are "inferior" planets compared with the Earth — meaning their orbits are closer to the sun, according to NASA — they create inferior conjunctions when swinging between ...

Contributing Editor Korey Haynes has produced a stellar story, How we study our planet, exploring the way we use Earth-orbiting satellites to inform us about our home. The array of orbiting ...