Only when the moon, Earth and the sun are perfectly aligned is the moon 100% full. And sometimes — once in a blue moon — the moon is full twice in a month (or four times in a season ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles ...

Unlike a total solar eclipse, part of the sun is still visible during a partial solar eclipse, so there is no darkening of the sky or visible solar corona.

New research suggests meteor showers are so unpredictable due to the Sun’s own motion around the solar‑system barycenter.

Meet the author: Dr. Phil Plait is an astronomer, author, and science communicator with a PhD in astronomy at the University ...

An astral animated TED-Ed lesson written by Elise Cutts explains how the tides on Earth are impacted both by the sun and the ...

Since the moon, sun and Earth are not perfectly lined up, the movement will result in a partial eclipse, in which the sun will look like a crescent, or like a piece has been taken out of it.

Multiple spacecraft captured the moon's shadow sweeping across North America at more than 1,500 mph during the 2024 total ...

How long Venus will be visible could from mere minutes to hours, depending on its position relative to the sun as seen from Earth ... sky after the sun and the moon. Look for locations with ...

This image provided by NASA/Firefly Aerospace, Tuesday, March 18, 2025, shows the sun setting on the moon, with Earth and Venus in the distance. (NASA/Firefly Aerospace via AP) NEW YORK (AP ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under ...

Venus Passes Between the Earth and Sun This Weekend -- but Don't Try to ... Venus has phases just like the moon. Before and after the conjunction, Venus looks like a thin crescent — though ...