Category Archives: Earth

Field trips, events and tours | ASU Tempe School of Earth and Space Exploration

SESE is training the next generation of explorers and citizen scientists. We engage the minds of our students, and by making our research available to all, we also engage the minds of our community. Through a variety of informal science education and public outreach (E/PO) activities, field trips, teacher workshops, and partnerships with local schools, we are increasing the science literacy of our community.

Have a science-related question? Visit our Ask SESE page!

For school groups, we offer a K-12 field trip experience that includes a variety of science-themed activities and a 3-D astronomy show.

Those visitors interested in seeing our various labs and facilities should  schedule a tour as many of our facilities have limits on how many visitors can be accommodated. Our new building ISTB 4 offers several interactive exhibits on the first two floors which are open during normal business hours.

READ MORE> via Field trips, events and tours | School of Earth and Space Exploration.

Tempe, AZ 85287-6004 Phone: 480-965-5081 | Fax: 480-965-8102 |Contact

The Van Allen Probes Web Site

The Van Allen Probes, the second mission of NASA\’s Living With a Star program, are providing unprecedented insight into the physical dynamics of the radiation belts and are providing scientists the data they need to make predictions of changes in this critical region of space.

Van Allen Probes

Since their launch on Aug. 30 2012, the two Van Allen Probes have orbited the Earth, sampling the harsh radiation belt environment where major space weather activity occurs and many spacecraft operate.

via The Van Allen Probes Web Site.

Advanced Composition Explorer – Earth Bombardment

The Advanced Composition Explorer (ACE) is an Explorer mission that was managed by the Office of Space Science Mission and Payload Development Division of the National Aeronautics and Space Administration (NASA). More on the ACE personnel, including scientific Co-Investigators can be found here.

Graphic of L1 location GIF

ACE launched on a McDonnell-Douglas Delta II 7920 launch vehicle on August 25, 1997 from the Kennedy Space Center in Florida.

The Earth is constantly bombarded with a stream of accelerated particles arriving not only from the Sun, but also from interstellar and galactic sources. Study of these energetic particles contributes to our understanding of the formation and evolution of the solar system as well as the astrophysical processes involved. The Advanced Composition Explorer (ACE) spacecraft carrying six high-resolution sensors and three monitoring instruments samples low-energy particles of solar origin and high-energy galactic particles with a collecting power 10 to 1000 times greater than past experiments.

ACE orbits the L1 libration point which is a point of Earth-Sun gravitational equilibrium about 1.5 million km from Earth and 148.5 million km from the Sun. From its location at L1 ACE has a prime view of the solar wind, interplanetary magnetic field and higher energy particles accelerated by the Sun, as well as particles accelerated in the heliosphere and the galactic regions beyond.

ACE also provides near-real-time 24/7 continuous coverage of solar wind parameters and solar energetic particle intensities (space weather). When reporting space weather ACE provides an advance warning (about one hour) of geomagnetic storms that can overload power grids, disrupt communications on Earth, and present a hazard to astronauts.

via ACE Mission.

Earth Right Now | NASA

With the launch of five Earth-observing missions in 2014 — more Earth-focused launches in a single year in more than a decade — NASA will be able to deliver even more crucial data to scientists trying to understand our changing planet. Since the agency\’s inception in 1958, NASA has established itself as a world leader in Earth science and climate studies.

via Earth Right Now | NASA.

Epic study confirms Einstein on space-time vortex around Earth | Space | EarthSky

Einstein was right: There is a four-dimensional space-time vortex around Earth, and the spin of Earth does twist space-time.

That’s according to NASA, in an announcement made 52 years after scientists first imagined how to test Einstein’s theory on space-time – before the technology to test it had even been invented. NASA announced confirmation of the four-D space-time vortex around Earth on May 4, 2011.

What does it mean? As Einstein suggested in his general theory of relativity, published in 1916, gravity can be described as the motion of objects following curved lines in space – or rather space-time, as Einstein more accurately depicted it. The curved lines are caused by the presence of a mass, for example our Earth or sun. In other words, according to Einstein, mass causes space-time to curve. Objects moving near that mass roll toward it, much as a ball would roll toward a heavy person sitting on a trampoline. What’s more, as Earth spins, it should cause a twist in the fabric of space-time. NASA’s Gravity Probe B (GP-B) confirmed these two key predictions, derived from Albert Einstein’s general theory of relativity. The findings are online in the journal Physical Review Letters.

via Epic study confirms Einstein on space-time vortex around Earth | Space | EarthSky.

Earth as seen from space 500 million years ago | Space | EarthSky

Scientists have blended NASA images with geography and climate reconstructions to create an animation of the Earth as it would have appeared from space 500 million years ago. This animation, released on April 22, 2011 to celebrate Earth Day, is part of the Visible Paleo-Earth (VPE) project of Planetary Habitability Laboratory (PHL) at the University of Puerto Rico. It’s fun to compare the Earth of 500 million years ago with today’s Earth by clicking “play” on the two videos below simultaneously.

Via Planetary Habitability Laboratory

via Earth as seen from space 500 million years ago | Space | EarthSky.