NASA astronaut Jessica Meir captured this image of the Lyrid meteor shower above Earth from aboard the ISS. (Image credit: NASA/Jessica Meir) The Lyrid meteor shower peaks tonight (April 21). And, if you spot any Lyrid meteors, you have something cool in common with an astronaut! What is it? The Lyrid meteor shower is at its peak this week, with prime viewing happening overnight from April 21 to April 22. Article continues below The Lyrids are made up of bits of debris trailing the long-period comet C/1861 G1 Thatcher, which was discovered in 1861. Long-period comets have very long orbital periods, taking hundreds of years or more to orbit the sun . Every year around this time, Earth passes through this comet's debris field. Pieces of it burn up in our atmosphere, creating the spectacular meteors that streak across the sky. The shower produces up to 15 to 20 Lyrid meteors per hour. You can see the Lyrids radiating from around the constellation Lyra (hence their name).…