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HOUSTON, TEXAS (APRIL 28, 2025) – Since the start of the 2024-25 school year, nearly 2,000 high school teams and 5,000 students from more than 80 countries collaborated across oceans and time zones to develop viable solutions to global challenges in the field of Science, Technology, Engineering, and Mathematics (STEM). Competing for first place titles as “Pete Conrad Scholars,” the top 31 student teams convened at Space Center Houston for the Conrad Challenge Innovation Summit and EXPO finals sponsored by Equinor. Founded in 2007 by Nancy Conrad in honor of her late husband, NASA astronaut Charles “Pete” Conrad, the Challenge inspires students to design today’s solutions for tomorrow’s challenges, carrying forward his legacy for innovation and exploration. Nancy Conrad, ...

ALTThis computer-simulated image shows a supermassive black hole at the core of a galaxy. The black region in the center represents the black hole’s event horizon, beyond which no light can escape the massive object’s gravitational grip. The black hole’s powerful gravity distorts space around it like a funhouse mirror. Light from background stars is stretched and smeared as it skims by the black hole.You might wonder — if this Tumblr post is about invisible things, what’s with all the pictures? Even though we can’t see these things with our eyes or even our telescopes, we can still learn about them by studying how they affect their surroundings. Then, we can use what we know to make visualizations that represent our understanding.When you think of the invisible, you might first picture som...