Space

Discover the cosmic microwave background and learn how astronomers found this all-sky glow — and uncovered a key clue to the Big Bang.

From Earth to the Moon, Nicole Gugliucci explains how gravity changes your weight while your mass stays the same — and why that could mean a lot more chocolate.

Nicole Gugliucci explains how astronomers settled on an official list of constellations, and what the choices reveal about whose stories are represented in the night sky.

Does the cosmos preserves a record of everything that has ever happened?

Find out how a rare planetary alignment made a four-planet grand tour possible, and how nuclear technology keeps these aging probes running deep in the cosmos.

This week we dive deeper into the blank spaces of the universe, puzzling scientists for nearly 100 years.

What can a horse teach us about the dangers of human expectation — and how it shapes our search for intelligent life in space?

Listen to Cosmically Curious on NHPR's Weekend Edition Sunday at 8:35 a.m. and again on Mondays during Morning Edition at 7:32 a.m. and 9:32 a.m.

Catch Cosmically Curious on Weekend Edition Sunday at 8:35 a.m. and again on Mondays during Morning Edition at 7:32 a.m. and 9:32 a.m.

This January, NHPR marks the 40th anniversary of the Challenger shuttle disaster with a multi-part series honoring the life, impact, and enduring legacy of Christa McAuliffe, New Hampshire’s teacher-astronaut.