For a century, spaceflight meant launching finished hardware from Earth. That model is giving way to something more powerful: manufacturing, assembling, and repairing complex structures in orbit and beyond. Orbital construction blends robotics, autonomous control, materials science, and systems engineering to create assets too large, too delicate, or too modular to survive launch in one piece. It’s how we’ll build next‑gen telescopes, kilometer‑scale solar arrays, and habitat
If life can thrive in Earth’s harshest corners, perhaps it can survive on alien worlds too. Astrobiology explores that possibility by treating our planet’s extremes—boiling vents, acidic lakes, subglacial oceans—as natural laboratories. The goal isn’t to prove that life exists elsewhere, but to map the boundaries of the possible: temperature, pressure, radiation, pH, salinity, and energy sources that cells can tolerate. Each discovery on Earth widens the search window for Mar
Space weather is the ebb and flow of solar activity—flares, coronal mass ejections, and high‑energy particles—washing over Earth’s magnetic cocoon. Most days it paints auroras and leaves our technology alone. Some days it surges, disrupting satellites, power grids, and radio links in minutes. Understanding this Sun–Earth connection is no longer niche heliophysics; it’s critical infrastructure science. This article surveys how the Sun drives disturbances, how radiation affects
Cislunar space will be the proving ground for a sustainable, science‑forward economy. This article explains why the lunar poles matter, the infrastructure required between Earth and Moon, the surface systems that keep people and payloads alive, and which technologies scale to Mars. KEY TAKEAWAYS · The lunar south pole’s illumination peaks and permanently shadowed regions (PSRs) enable near‑continuous power and access to water ice. · Cislunar infrastructure—depot