Stellar streams are faint trails of stars that appear to "stream" out of galaxies. A new one, escaping galaxy M61, may point to many others.

“The idea is that we move from a place of wanting the world to conform to what we like [towards] not needing other people to be different from who they are.”

Dark matter has never been directly detected, but the astronomical evidence for its existence is overwhelming. Here's what to know.

“Deep down the natural endpoint of this whole goal of looking for planets is to answer the question: are we alone?”

Language is a huge part of human development, even the language we keep to ourselves. Three experts explain how words and beliefs can change our brains and our lives:

Arianna Huffington argues that true success should encompass well-being, wisdom, wonder, and giving, rather than just wealth and power, challenging the notion that sacrificing happiness and working excessively defines achievement.

This class, featuring insights from Michael Strahan and Ginni Rometty, emphasizes learning from failure, building resilience through relationships, and fostering a growth mindset, ultimately equipping participants with strategies to thrive amidst uncertainty and embrace personal and professional growth.

Questions about our origins, biologically, chemically, and cosmically, are the most profound ones we can ask. Here are today's best answers.

Across all wavelengths of light, the Sun is brighter than the Moon. Until we went to the highest energies and saw a gamma-ray surprise.

It's OK to hate a frigid pond.

Throughout history, "free energy" has been a scammer's game, such as perpetual motion. But with zero-point energy, is it actually possible?

"For many people, the idea that consciousness is a set of tricks is offensive," the late philosopher told Big Think in 2012. "I think that's a prime mistake."

When your head is full of information, how can you actually make use of it?

“So many things could have happened in a different way that we wouldn't be here at all, both individually, for sure, and certainly as a species.”

Amplifying the energy within a laser, over and over, won't get you an infinite amount of energy. There's a fundamental limit due to physics.

Wonder is like a guest you haven’t planned for.

“What did you win? You won awkward silence. You won their contempt. You won the first to apologize. When you win an argument, you will lose their confidence, you will lose their respect, you will lose the connection.”

From Einstein to Twain, Garson O’Toole investigates the truth behind your favorite — and often misattributed — quotes.

For over 50 years, it’s been the scientifically accepted theory describing the origin of the Universe. It’s time we all learned its truths.

In this excerpt from "Agents of Change," Christina Hillsberg tells the story of Martha “Marti” Peterson, the first female case officer stationed in Soviet Moscow.

For his new book, “The Ghost Lab,” Matt Hongoltz-Hetling spent time with paranormal investigators to understand their relationship with science and society.