The pH scale is a measure of how acidic or alkaline something is, 1 being highly acidic, 14 being highly alkaline, and 7 ...

Data from India's recent Chandrayaan-3 mission supports the idea that an ocean of molten rock once covered the moon. Scientists from the mission have published their new findings in the journal ...

Weather Ask the Meteorologist: How do lunar halos form, and what do they mean? Lunar halos form when moon light passes through ice crystals ahead of storm systems.

The lunar halo The folks at Space.com explained that the moon's “halo or lunar halo” is an optical illusion that causes a large bright ring to surround the moon. The halo or circle is created ...

There was once a magma-filled ocean on the south pole of the moon, scientists recently discovered after analyzing lunar soil.

New findings by India’s Chandrayaan lunar probe seem to validate an idea called the Lunar Magma Ocean theory concerning how the Moon formed. Scientists have hypothesized that when the Moon ...

Clouds produced an incredible lunar halo that was widely seen in the D.C. area Friday night. Depending on cloud cover, there could be a similar one Saturday night.

Several viewers reached out with pictures and questions about a halo around the moon Monday night.

A vast magma ocean may once have existed on the moon's south pole, according to evidence obtained by India's Chandrayaan-3 rover.

Data from India's recent Chandrayaan-3 mission supports the idea that an ocean of molten rock once covered the moon.