Pedro Martinez is one of those guides, who recalls how the monarchs were once considered a plague and faced eradication before the sanctuary was established. Since this is a big forest, the butterfly comes here to find a place to spend the winter.
Swarms of monarch butterflies create an awe-inspiring scene in Mexico.Use one of the services below to sign in to PBS: You've just tried to add this video to your Watchlist so you can watch it later.But first, we need you to sign-in to PBS using one of the services below.Of particular note are four satellites that travel together in the same orbit: Aqua, Aura, Cloud Sat and Calipso.These environmental-monitoring satellites are part of what NASA calls the "A-Train," and together they hold 15 different instruments useful for studying such things as rainfall and aerosols in the air.They get their name because they cross over the equator each day at p.m., so the "A" stands for "afternoon." Looking at this animation, you might be surprised by just how crowded the satellite space around our planet is.
But remember, this animation only shows 19 Earth-observing NASA satellites.
The majestic monarch makes the epic journey— up to 3,000 miles (4,500 km)—from as far as Canada to the Monarch Butterfly Biosphere Reserve.
The local guides have great pride in showcasing this beautiful, protected habitat to visitors. The butterfly travels 4,500 kilometers from Canada to these forests.
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ISRO maintains one of the largest fleet of communication satellites (INSAT) and remote sensing (IRS) satellites, that cater to the demand for fast and reliable communication and earth observation respectively.