This isotope is found at a ratio of about one per 2,500 helium-4 ions, the latter being the common version of helium.

The moon’s glowing appearance comes from the sun’s reflected light, leading to its typical white or golden hue, according to NASA. Instead, the “pink” name is a nod to the arrival of ...

The moon’s glowing appearance comes from the sun’s reflected light, leading to its typical white or golden hue, according to NASA. Instead, the “pink” name is a nod to the arrival of ...

The Blue Ghost lunar lander, which has been on the moon since the spacecraft’s successful touchdown on March 2, captured images of the sun, Earth and moon lined up at around 4:30 a.m. ET ...

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. This new moon of March 2025 will create ...