Lightning forms when air currents cause water and ice particles in storm clouds to collide, creating a positive charge at the cloud's top and a negative charge at its base.

When this electric field grows strong enough to break down the air's insulation, a negative "stepped leader" descends toward the ground while positive charges rise from tall objects to meet it.

Upon connection, a powerful return stroke surges upward, producing the visible flash. This rapid discharge violently heats the surrounding air, generating a shockwave heard as thunder.

Did you know this toad secretes poison to protect itself? 🐸

Meet Oak, our Cane Toad whose shoulder lumps, called parotoid glands, ooze a milky toxin strong enough to stop predators and even kill smaller ones. Cane toads are an invasive species. They were once only found in Central and South America but have been brought to places like Australia, Florida, and the Caribbean to control crop pests. This ended up not being a success and is a good reminder to leave native species where they are.

Rocket engine testing verifies performance, safety, and reliability before flight by firing engines on specialized stands equipped for extreme heat and pressure. Using advanced sensors, engineers measure key variables including thrust, fuel consumption, combustion stability, and thermal protection to identify potential flaws across liquid, solid, and hybrid systems. These tests also validate essential subsystems, such as thrust vector control for steering and custom nozzle designs optimized for atmospheric or vacuum conditions.

Scientists just recorded the highest sea surface temperature ever. 🌊🌡️

Copernicus Climate Change Service clocked a global average of 21.1°C (70°F), beating the previous single-day record of 21.09°C set in 2024. It's especially alarming because sea surface temps usually peak in March and April, not August. Warmer oceans absorb less CO2, which can fuel more extreme weather, and scientists suspect a developing super El Niño may be part of what's driving it. 

NASA’s next great space observatory has officially launched! 🛰️🚀

The Nancy Grace Roman Telescope is now on its trip to go a million miles away from Earth, where it will reside and send images of space back to us. In the month it will take to get there, the observatory will undergo a 90-day commissioning period to get set up. Considering it launched eight months ahead of schedule, don’t be surprised if we get some pictures early!

The Roman Space Telescope is launching ahead of schedule. 🛰️

Its origin story is wild: NASA couldn't afford a Hubble successor until the National Reconnaissance Office handed over two spare telescope mirrors it no longer needed. That surplus gift reignited political and scientific support, opening the door to full funding for what's now called the Nancy Grace Roman Telescope. As theoretical cosmologist Paul Sutter explains, this survey instrument will map galaxies and hunt exoplanets, expected to discover around a million of them, delivering a generation's worth of valuable information about the universe!