New Space Economy

When does light end depends on whether the question refers to a beam, a visible signal, an individual photon, or the long future of the universe. In ordinary life, light ends when it stops reaching an eye, camera, solar cell, telescope, or other detector. A lamp switched off stops producing new photons, but photons already emitted keep traveling until matter absorbs or redirects...

On March 18, 2022, a Kh-47M2 Kinzhal missile struck an ammunition depot in western Ukraine, recording the first confirmed combat use of a hypersonic weapon. This event marked a permanent shift in aerospace defense mechanics, accelerating the deployment of advanced delivery systems designed to defeat traditional perimeter defenses. For decades, the primary aerospace threat to Nor...

NASA lists astronaut accounts alongside center, program, and leadership accounts in its official social media directory, with individual astronauts appearing on platforms such as Instagram, X, Facebook, and Reddit. As of the directory’s May 4, 2026 update, NASA’s astronaut listings included accounts for Nichole Ayers, Kayla Barron, Zena Cardman, Victor Glover, Christina Koch, An...

China has successfully launched its Shenzhou-23 crewed spacecraft, marking a significant milestone in its human spaceflight program and a bold step toward sending astronauts to the Moon before 2030.

The universe is about 13.8 billion years old, and the question “what is heat death?” asks what may happen if cosmic expansion continues for an unimaginably long span of time. Heat death is the proposed condition in which the universe reaches such a high level of entropy that no useful energy differences remain. Stars no longer shine, galaxies no longer form new stars, black hole...