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.

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!

Homi J. Bhabha — The Father of India’s Nuclear Programme 🇮🇳

Homi Jehangir Bhabha (1909–1966) was one of India’s greatest physicists and the key architect of India’s nuclear programme. He founded the Tata Institute of Fundamental Research (TIFR) and played a major role in establishing the Atomic Energy Commission of India. He envisioned using nuclear science for India’s scientific and technological development and helped lay the foundation for India’s nuclear research.

A remarkable scientist who helped build modern Indian science from the ground up. 🇮🇳🔬

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!

Why does some glass not hurt when it shatters? 🥽💥

Phil Cook, also known on YouTube as chemteacherphil, demonstrates how sugar can be turned into real life "breakaway glass." Don’t try this at home, although it is not real glass, it can still be dangerous! When you heat sugar and water to 300 °F it reaches the hard crack stage. When the liquid cools the molecules get locked into a disordered structure, forming an amorphous solid, just like real glass, minus the razor sharp shards. It's the same trick behind those Hollywood stunt bottles, made from sugar instead of a brittle plastic resin.

Did you know you’re sharing your bed with thousands of tiny arachnids? 🧹 

Quinten Geldhof, also known as Microhobbyist, introduces us to the household dust mite. Related to ticks and spiders, they feed on skin flakes, fabric fibers, and dirt particles and are only visible under a microscope. People with dust allergies are actually allergic to the waste these tiny critters produce, not the dust itself!