An image of the James Webb Space Telescope.
Astronomy

Modern Space Telescopes and Exoplanet Exploration

October 4, 2022

Modern telescopes such as the Kepler space telescope are extremely efficient at detecting exoplanets. They allow astronomers to focus and observe distant crowded star fields, maximizing the chance of finding new exoplanets. […]

An image of 51 Pegasi b.
Astronomy

Michel Mayor and Didier Queloz: Discovering Exoplanet 51 Pegasi b

October 4, 2022

51 Peg a and b were discovered at a time when astronomers believed that such a system shouldn’t exist. Finding a huge planet in a small orbit seemed erroneous. Theoretically, large gas giants, like 51 Peg, were thought to be always situated in the outer reaches of a planetary system. […]

An image of a person holding a phyllite of metamorphic rock on pink background.
Chemistry

Uranium, Thorium, and Geologic Dating

October 2, 2022

Thorium 232 has an astounding half-life of 14 billion years which makes it capable of accurately dating geologic samples. In case of uranium, it is its proportion to lead in the sample, that helps date it. […]

An image of a person conducting experiments with a radioactive substance.
Chemistry

Discovering New Radioactive Elements

October 2, 2022

On becoming aware of the radioactive properties of uranium, it was Marie Curie who successfully isolated new radioactive elements such as radon, polonium, and radium. […]

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