Chapter updates

Videos for teaching astronomy


Christian Doppler and his background and his effect


New version of figure for Table 3-1


A model Solar System

Rare Transit of Mercury


Highlights of the U.S. Global Change Research Program Climate Science Special Report


NASA’s Perseverance and Other Mars Rovers in 2020


Motion of the Earth’s North Magnetic Pole

Public Naming Contest for Latest Moons of Jupiter


Saturn's Rings and Rotation


Saturn's Rings May Disappear Sooner than we Thought


2019 Meteor Trail like Chelyabinsk’s


NASA to Launch “Lucy” to Trojan Asteroids


NASA's Eyes on Exoplanets


Parker Solar Probe Nears the Sun


30 Year Supernova Time Lapse


Black holes may have soft hair (say Stephen Hawking and colleagues)

Multimedia for LIGO


See the Milky Way in a whole new light


Renaming Hubble’s Law to the Hubble-Lemaître Law


Breakthrough Listen publishes largest release of SETI data in the history of the field


Jill Tarter, model for protagonist of Contact movie, interviewed


Powers of Ten - movie


Author Alex Filippenko talks on “Discovering our Celestial Connections” – movie


The European Extremely Large Telescope


Observing with Mike Brown on Maunakea


Observing the Midnight Sun


Equinox: The Sun from Solstice to Solstice


Search for life from 2020's Mars Rovers


Post-Chicxulub Fossils


2019: Smallest Ozone Hole in Years


NASA's InSight on Mars


Moon rocks in 2019


Explaining the formation of the Moon


Visiting the Moon's Uncharted Territory


Extra moon (“mini-moon”) orbiting Earth


50 Years of Lunar Science Since Apollo 11


Revolutionary mission to explore Saturn’s largest moon


Rings of Uranus Imaged in the Infrared


Additional Moon for Neptune


Juno at Jupiter


The Length of A Saturn Day


Tektites, iridium, and fish fossils from the dinosaur extinction event


2019 Meteorite makes hole in doghouse roof


The Hunt for Planet 9

Newly categorized dwarf planet: Hygiea


Ceres Deposits


Complex geology on asteroid 4 Vesta

First TESS results


Habitable conditions for Super-Earth exoplanet


The Road to the Discovery of Solar Neutrinos


The Hyper-Kamiokande Project is Officially Approved


Crystal White Dwarfs

The second LIGO discovery


LIGO discussed on NPR


2017 Nobel prize in Physics awarded for detection of gravitational waves


Citizen scientists re-tune Hubble’s galaxy classification


Seeing the Milky Way in different wavelength bands


Hubble Images the Whole Triangulum Galaxy


Quasar as a Probe of Missing Baryon Mass


Cosmology Discrepancy Increases


The Hubble Constant Over Time

Messaging ExtraTerrestrial Intelligence


Aid to the Formation of Life on Earth


Prefixes for Large Numbers: Beyond the Yottabyte