1. Astronomy 1010 Planetary Astronomy Fall_2015 Day-24

3. Course Announcements SW-chapter 6 posted: due Fri. Oct. 23 SW-chapter 7 posted: due Fri. Oct. 30 PRS proposal writing workshop: Thur, 10/22/2015 - 1 – 2 p.m. Location: MUC 303

4. Astronomers use different instruments to look at light of different wavelengths - sometimes, we even have to go above Earth’s atmosphere. That Darned Atmosphere

5. Lecture Tutorial: Telescopes & Earth’s Atmosphere: pg. 51 Work with a partner! Read the instructions and questions carefully. Discuss the concepts and your answers with one another. Take time to understand it now!!!! Come to a consensus answer you both agree on. If you get stuck or are not sure of your answer, ask another group.

6. i_Clicker Questions Light & Spectra: Atmospheric Windows – Option-1 Atmospheric Windows – Option-2

7.  Spacecraft have visited or flown by all the classical planets.  Flybys and orbiters observe from afar.  Landers, rovers, and atmospheric probes are more direct, and some can return samples.

8.  Particle colliders probe physics of protons, neutrons, neutrinos, and atomic nuclei.  Can help astronomers understand the early universe and structure formation.

9.  In a few cases, astronomers capture things other than light: Neutrinos—light subatomic particles that are extremely difficult to detect. Gravitational waves—distortions in spacetime predicted by relativity.

10.  Computers are essential for astronomy.  Help in data analysis.  Simulations and models help to investigate complex situations.

11.  A microwave telescope provided more evidence for the Big Bang, revealing the presence of the cosmic microwave background radiation (CMB).

12.  Technology and science are symbiotic.  New technological advances lead to new methods of scientific observation and experimentation.  New scientific discoveries spur improvements in instrumentation. PROCESS OF SCIENCE