The Many Mysteries of MMS

Scientists Michael Hesse and John Dorelli explain the science objectives of the MMS mission.
The Magnetospheric Multiscale (MMS) mission is comprised of four identically instrumented spacecraft that will use Earth’s magnetosphere as a laboratory to study the microphysics of three fundamental plasma processes: magnetic reconnection, energetic particle acceleration, and turbulence. These processes occur in all astrophysical plasma systems but can be studied in situ only in our solar system and most efficiently only in Earth’s magnetosphere, where they control the dynamics of the geospace environment and play an important role in the processes known as “space weather.”

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Celestron 127EQ PowerSeeker Telescope
Celestron 127EQ PowerSeeker Telescope
Old Price: $169.95
Price: $129.36

Ode to Hubble

I always love to watch any video about Hubble.With all the milestones achieved by this telescope, you would think that there was noting new to watch about it, but it is always a new experience to view something new. I hope it continues for a long time to come and that it will continue to delight us as it has done in the past.
Hubble has achieved an extraordinary amount in its lifetime and 2015 will mark 25 years since its launch. The year 2015 will be filled with Hubble-related activities for you to enjoy and, most importantly, get involved with. In this Hubble-cast we look back at some of the ways in which you have shown your appreciation for Hubble in the past and let you in on what the Hubble 25 celebrations have to offer.

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Celestron 127EQ PowerSeeker Telescope
Celestron 127EQ PowerSeeker Telescope
Old Price: $169.95
Price: $129.36

10 Hottest Facts About Solar Storms

This video is for all of you out there who find delight in numbers and facts stated by numbers.
Our Sun is located 24-26,000 light years from the center of the Milky Way. It circles the galaxy every 225-250,000 years, at a speed of 220 kilometers per second. The sun is a medium size star, a Yellow Dwarf, G type main sequence. It’s about one million times the size of planet Earth.Core temperature:15,000,000 °C. Surface temperature: 5,500 °C.
The sun emits a steady stream of charged particles, the solar wind, at 450 km per second. It increases in strength during active periods, every 11 years or so. Active periods are marked by an increase in sunspots. Sunspots are Earth-sized regions where intense magnetic fields prevent hot gas from reaching the surface, driving temperatures down to around 4,000°C. They often correspond to active regions.
Where magnetic activity drives the formation of coronal loops, or prominences. Solar flares. And Solar tsunamis, technically “fast-mode magnetohydrodynamical waves.” In February 2009, the Stereo spacecraft detected one that rose to 100,000 km high, and raced outward at 250 kilometers per second. It was associated with an eruption of gas and magnetic fields called a coronal mass ejection.
A CME can blast a billion tons of matter out at 10 to 12 million kilometers per hour. A CME sends a pulse of solar plasma to the limits of the solar system, where it can impact planets or spacecraft. We see its arrival in spectacular aurora. They form when solar particles rain down on Earth’s atmosphere, causing oxygen and nitrogen atoms to glow.

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Celestron 127EQ PowerSeeker Telescope
Celestron 127EQ PowerSeeker Telescope
Old Price: $169.95
Price: $129.36

Star Cluster NGC 3532

The MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile captured this richly colorful view of the bright star cluster NGC 3532 shown in this pan video. Some of the stars still shine with a hot bluish color, but many of the more massive ones have become red giants and glow with a rich orange hue.

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Celestron 127EQ PowerSeeker Telescope
Celestron 127EQ PowerSeeker Telescope
Old Price: $169.95
Price: $129.36

Moon Phases 2015

Northern Hemisphere (Moon Only)
This visualization shows the Moon’s phase and libration at hourly intervals throughout 2015, as viewed from the northern hemisphere. Each frame represents one hour. To learn more about this visualization, or to see what the Moon will look like at any hour in 2015.

For more visit: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4236

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Celestron 127EQ PowerSeeker Telescope
Celestron 127EQ PowerSeeker Telescope
Old Price: $169.95
Price: $129.36