Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

Quasars — the brightest objects in the universe — are powered by supermassive black holes at the heart of early galaxies.

Celebrating America's 250th birthday, Space.com looks back at what our understanding of space was like in 1776 and what major ...

The planet should not have survived the star's red giant phase—which sees a star balloon to more than 100 times its original ...

Los Angeles this week approved the $2 billion Fourth & Central project after years of planning and community negotiations.

It’s sometimes easy to overlook the fact that the International Space Station (ISS) is a giant lab where scientists study ...

Our universe appears flat—but this observation still leaves plenty of options for its true shape. In fact, our cosmos could resemble a donut What shape is the universe? This question is far more ...

Two people who were born in South Dakota have spent some time in space and are among 800 astronauts. Charles “Sam” Gemar was the first person from the state to see space. Gemar was born in Yankton and ...

Standing before a friendly crowd in March, Elon Musk laid out his plan for the future of his companies, and it was literally out of this world. Musk announced that his space-launch company, SpaceX, ...

Connections with Evan Dawson is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung ...

Add Yahoo as a preferred source to see more of our stories on Google. I’ve always loved looking up at the night sky. Even though I didn’t pursue science in college, the outer world has never stopped ...