Bedtime Astronomy

New research from ETH Zurich suggests that Earth formed almost entirely from inner solar system material. Isotopic evidence shows that less than 2% came from beyond Jupiter, challenging long-held theories about external contributions.

This implies that Jupiter acted as a barrier early on—meaning key ingredients like water may have originated locally, reshaping our understanding of planetary formation.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

This episode includes AI-generated content.

Data from the James Webb Space Telescope reveals a new class of exoplanets—molten worlds with global magma oceans and toxic, sulfur-rich atmospheres. One example, L 98-59 d, appears to sustain its thick atmosphere through continuous volcanic degassing.

This discovery suggests that planets around red dwarf stars may follow a third evolutionary path, expanding our understanding of how diverse—and extreme—alien worlds can be.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

This episode includes AI-generated content.

Astronomers analyzing data from the Hubble Space Telescope made a surprising discovery: a comet that literally reversed its spin. Known as Comet 41P/Tuttle–Giacobini–Kresák, this small, fragile object reacts dramatically as it nears the Sun. Jets of gas erupt from its surface like uneven thrusters, slowing its rotation until it flips direction entirely.

This rare phenomenon reveals how unstable and rapidly evolving comets can be—and suggests 41P may eventually break apart. It also highlights how revisiting old NASA data can still unlock entirely new discoveries about our solar system.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

This episode includes AI-generated content.

Scientists used advanced 3D simulations to explore how massive impacts shaped the metallic asteroid 16 Psyche—believed to be the exposed core of an ancient protoplanet.

The study reveals that internal porosity plays a critical role in crater formation and material distribution, offering new insights into planetary formation and the early evolution of the solar system. These findings await confirmation from NASA’s Psyche mission, set to arrive in 2029.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

This episode includes AI-generated content.

A new study suggests that dark energy may evolve over time, offering a potential explanation for the Hubble tension.

By analyzing multiple cosmic epochs, researchers hint at unknown interactions with dark matter—pointing toward possible revisions of current cosmological models.

Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs.

This episode includes AI-generated content.