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Look up on a clear night and you'll see the streaks of our modern satellite networks. What you don't see is the growing fallout for the atmosphere that keeps us alive. A wave of satellite launches and reentries is changing the chemistry and physics of the middle and upper atmosphere. Studies warn of ozone depletion, stratospheric heating, and new metal aerosols from burning spacecraft.

The Vera Rubin Observatory will do more than probe dark energy—it is poised to revolutionize our detection of Near-Earth Objects, giving us unprecedented warning before they strike. The Vera Rubin Observatory (VRO) has barely begun observations and is already wowing us. Images like its Cosmic Treasure Chest have us anticipating even more cosmic glory. And when the observatory sent out 800,000 alerts in one night in February, we got a taste of the scientific boost it will giv

SpaceX's Starship is rewriting the rules of spaceflight. But a rigorous new analysis from the German Aerospace Center proposes a European alternative that trades brute force for pure efficiency. In the summer of 2023, SpaceX's Starship—a stainless steel tower taller than a 30-story building—lit its 33 engines simultaneously and lifted off. By flight test five, the Super Heavy booster was caught midair by the enormous mechanical arms of its own launch tower.

The Vera Rubin Observatory has begun scanning the night sky, unleashing a torrential stream of data that will transform our view of the cosmos from a static painting into a dynamic, living movie. To us, the night sky seems static. But the cosmos is actually alive with objects that change, move, and explode.

A piece of off-the-shelf lab equipment the size of a cellphone is set to revolutionize how we conduct biological research in low Earth orbit. Space science requires patience. Historically, running biological tests on the International Space Station meant freezing samples, loading them into a return capsule, waiting for splashdown, and transporting them to a lab on Earth. The process takes months.

For decades, space weather forecasts only gave us hours to prepare for catastrophic solar flares. A new AI tool is changing that to weeks. Space weather is a silent but potent threat. When the sun unleashes a solar flare or a Coronal Mass Ejection (CME), the resulting blast of radiation and charged particles can cripple GPS, fry power grids, and threaten astronaut safety.

When a SpaceX rocket created a spectacular fireball over Europe, scientists rushed to their lasers. What they found was a permanent, human-made chemical fingerprint high above Earth. In the early hours of February 19, 2025, the upper stage of a Falcon 9 rocket tumbled back to Earth, exploding into a fireball that made headlines from the UK to Poland. While stargazers marveled at the light show, a team from the Leibniz Institute of Atmospheric Physics saw an unprecedented sci

How a rugged, affordable, open-source microscope is revealing the secret lives of cells during the chaotic freefall of the "Vomit Comet." As space agencies gear up for long-duration missions to the Moon and Mars, understanding how the absence of gravity affects living cells is crucial. We know astronaut cellular signaling—like insulin processing—is altered in space, but watching it happen in real-time has been extraordinarily difficult and expensive.

SpaceX is pivoting. The immediate dream of a Martian metropolis has given way to a lunar reality. But what biological toll will either world extract from us? It’s an age-old debate in space circles: Should humanity’s first city on another world be built on the Moon, or on Mars? As recently as last year, SpaceX founder Elon Musk saw missions to the Moon as a "distraction," declaring his company was going "straight to Mars."

NASA has given the Mars rover "GPS" capabilities. By repurposing a helicopter chip, Perseverance can now find itself without calling Earth. Imagine driving in a desert with no map, no GPS, and only one phone call a day to ask for directions. That was life for Perseverance—until now.

A new proposal envisions 1 million satellites orbiting Earth. While promising data centers in space, it threatens to permanently alter the night sky for all of humanity. On January 30, 2026, SpaceX filed for a megaconstellation of up to 1,000,000 satellites. Operating between 500 and 2,000 km, these truck-sized data centers would create a continuous, industrialized presence in low Earth orbit.

Scientists want to put an ultra-stable laser clock in a freezing lunar crater. It could be the heartbeat of a future lunar GPS. The Moon's poles are dotted with "Permanently Shadowed Regions" (PSRs)—craters that haven't seen sunlight in billions of years. They are some of the coldest, quietest places in the solar system.