Two-thirds of people in the US can’t see the Milky Way from their homes. The stars that shape our galaxy disappear from view due to outdoor lighting which is too bright, stays on all night, or illuminates the sky rather than the earth. Night lighting also interferes with the rhythms of human, animal, and plant life.
Skywatchers in the Northern Hemisphere will have a chance to see the Lyrid meteor shower between April 16 and April 25. The best day to see them, weather permitting, will be extremely early in the morning on Sunday, April 22.
Meteor showers occur when the Earth crosses the path of a comet, colliding with a trail of comet crumbs. As they burn up in the atmosphere, the meteors leave bright streaks in the sky commonly referred to as "shooting stars”.
Until now, researchers did not have a full set of data on ocean salinity and how it impacts climate change. This video from NASA explains how Aquarius salinity data, combined with data from other sensors that measure sea level, ocean color, temperature, winds, and rainfall, will give us a much clearer picture of how the ocean works.Continue reading