The Orion constellation is one of the most striking in the night sky. Also known as Orion the Hunter, it’s easy to spot thanks to the three bright stars that form his belt: Alnitak, Alnilam, and ...

Credit: NASA, ESA, STScI, Paul Sell (University of Florida); Acknowledgement: Leo Shatz The Flame Nebula is a large star-forming region in the constellation Orion ... in a color composite of ...

Moreover, an object’s color may appear differently against different ... if something is indispensable to science, then it must be real and objective — otherwise, science wouldn’t work ...

The speed of that wave depends on the density of the medium, but in a typical nebula, it’s about 10 kilometers per second (km/s). That’s much faster than the less than 1 km/s speed of sound in ...

NASA processed this monochrome image and color-mapped it to a dark orange ... The observations retained more data than Hubble's. The Orion Nebula sits 1,300 light-years away, but it's among ...

But we’ve had smart traffic lights that adjust based on real-time conditions for years now. So why toss in a new color? The answer comes down to what the light represents. Green, yellow, and red ...

April 22, 2025 • Experts are divided whether a new missile defense system for the U.S., inspired by Israel's Iron Dome, would be worth the cost.

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