Chemical Cartography Reveals the Secrets of the Milky Way

Mapping the Milky Way

Mapping the Milky Way has traditionally relied on identifying concentrations of young stars, but dust clouds can obscure their light.

Chemical cartography fills in the missing pieces by mapping the distribution of elements based on their chemical composition.

Using data from the Gaia space telescope and LAMOST, Keith Hawkins created a map of metallicity in the Milky Way.

His map confirms the presence of spiral arms and reveals previously uncharted regions of our galaxy.

Chemical cartography has the potential to transform our understanding of the Milky Way's structure and formation.

Gaia Space Telescope Revolutionizes Galactic Study

The Gaia space telescope provides the most precise and comprehensive survey of the Milky Way to date.

With data on positions and chemical makeup of billions of stars, astronomers can conduct chemical cartography at a galactic scale.

Gaia's observations have allowed researchers to expand their study from thousands to billions of objects, revolutionizing our knowledge.

By understanding the fundamental properties of the Milky Way, we can apply those lessons to other galaxies and the universe as a whole.

Gaia's data is a game-changer for understanding our home Galaxy and entering a new era of exploration.

Eunice Newton Foote: Pioneer of the Greenhouse Effect

Eunice Newton Foote published an article in 1856 that predates John Tyndall's conclusions on the greenhouse effect.

Her experiment demonstrated that air with high levels of carbon dioxide became much more heated when exposed to the sun's rays.

Foote's contributions have been rediscovered, recognizing her as an important early researcher on the greenhouse effect.

Google Doodle commemorated Eunice Newton Foote's 204th birthday, bringing attention to her pioneering work.

Foote's study sheds light on the impact of varying concentrations of gases in Earth's atmosphere on temperature changes.

References (July 15, 2023). Chemical Cartography Reveals the Milky Way’s Spiral Arms.
David Bressan, Contributor. (July 17, 2023). Today’s Google Doodle Celebrates Woman Who First Discovered The Greenhouse Effect.

Content Restricted To Members