NASA/NSTA Web Seminar: Living and Working in Space: Energy LIVE INTERACTIVE YOUR DESKTOP

Living and Working in Space: The Solar Cycle and Space Weather Terry Kucera Scientist with the STEREO and SOHO Missions NASA/GSFC The Sun and Solar Activity Magnetic Fields Space Weather

I heard Terry Kucera (the presenter) at the Face-to-Face Symposium in Baltimore: YESNO

What is the most common element on the Sun? HydrogenHeliumNitrogenOxygenIron

Alex Lutkus

- You can fit 109 Earths across the disk of the Sun - Driving at a speed of 55 mph it would take almost 200 years to drive from Earth to the Sun Sun Scale Facts: Alex Lutkus

What state of matter is the Sun? Let’s do a poll question!

The Sun: Visible Light Sept. 22, 2000 SOHO/MDI

The Sun: Ultraviolet Light, Sept. 22, 2000 SOHO/EIT 286 A

The Sun Sept. 22, 2000 SOHO/EIT 286 ASOHO/MDI

The Sun Radiates More than Just Light SOHO/LASCO, ESA & NASA The Sun’s Corona in Visible Light Coronal Mass Ejections (CMEs)

8-10 minutes 1-2 hours1-4 days2-3 weeks1-5 months Question: How long does it take for radiation from a CME to travel from the Sun to the Earth?

SOHO/LASCO July 14, 2000 NASA & ESA High Energy Protons from the Sun (a.k.a Solar Energetic Particles or SEPs)

UC Berkeley

Solar Magnetic Loops TRACE NASA

Solar Cycle NASA

Solar Max or Solar Min? SOHO/MDI, ESA & NASA

Solar Max or Solar Min? SOHO/EIT ESA & NASA

Solar Max or Solar Min? Windows to the Universe

Earth’s Magnetosphere Without the solar wind the Earth’s magnetic field would be like a bar magnet. The solar wind compresses it on the Sun-ward side and stretches it on the far side. Windows to the Universe

Question: Does anyone know any of the ways that solar activity can affect Earth or human activities? Press *6 to unmute your phone and respond

Solar Activity - Space Weather Solar Flare Intense Extreme UV, X-rays Arrival: 8 min Solar Energetic Particles (SEPs) Arrival: 15 min - hours Protons at almost the speed of light Coronal Mass Ejection (CME) Arrival: days Magnetic field and plasma SEPs SOHO/EIT, ESA & NASA CME SOHO/LASCO, ESA & NASA Flare Big Bear Solar Observatory

Space Weather: CMEs and Geomagnetic Storms Windows to the Universe

Space Weather: CMEs and Geomagnetic Storms Some Results: Aurora, Power System Problems Image courtesy of Jan Curtis. Public Service Electric & Gas Corp.

Have you seen an Aurora? Where were you?

Aurora from Space POLAR NASA

Space Weather: Drag on Satellites in Low Earth Orbit Flares heat outer atmosphere causing increased drag on satellites NASA STS-103 Hubble Space Telescope drops km per year After a big flare 100’s of spacecraft have to be relocated

Space Weather: Radiation Hazards to Spacecraft and Astronauts NASA

Space Weather: Communications Problems Windows to the Universe

Spacecraft NASA

STEREO - just launched NASA

National Science Teachers Association Gerry Wheeler, Executive Director Frank Owens, Associate Executive Director Conferences and Programs Al Byers, Assistant Executive Director e-Learning LIVE INTERACTIVE YOUR DESKTOP NSTA Web Seminars Flavio Mendez, Program Manager Jeff Layman, Technical Coordinator Judith Lopes, Administrative Assistant Susan Hurstcalderone, Volunteer Chat Moderator