NASA
Every Cosmic Herald story on NASA — missions, launches, discoveries, and the business of space, newest first.
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Science & Discovery
Three moons in the outer solar system have conditions that could support life. We've barely started looking.
Enceladus has a liquid ocean venting organics and hydrogen into space. Europa has a global ocean under an ice shell. Titan has lakes of liquid methane and a complex organic chemistry. All three are active targets for future astrobiology missions.
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Commercial
Some things can only be made in zero gravity. A small industry is building the infrastructure to make them.
Microgravity enables manufacturing processes impossible on Earth: near-perfect optical fibers, protein crystals for drug development, organs grown without scaffolding, and alloys that separate under gravity. A nascent commercial sector is building the satellites and ISS platforms to exploit these properties.
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Science & Discovery
Solar panels stop working past Jupiter. Nuclear reactors are the only practical power source for deep space.
Radioisotope thermoelectric generators have powered deep-space probes since the 1960s. A new generation of compact fission reactors — Kilopower and its successors — could power permanent lunar bases, Mars surface missions, and spacecraft to the outer planets and beyond.
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Missions
Artemis is more than a Moon landing. It's a permanent outpost architecture. Here's the full picture.
Artemis is NASA's plan for sustained human presence near the Moon: a Gateway station in lunar orbit, commercial landers for surface access, the Lunar Terrain Vehicle, and a base camp at the south pole. The architecture is ambitious, politically contingent, and unlike anything attempted in the Apollo era.
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Science & Discovery
JWST can sniff exoplanet atmospheres. Scientists are debating what a 'biosignature' actually proves.
Biosignatures — atmospheric chemicals whose presence is difficult to explain without biology — are the primary observational strategy for detecting life on exoplanets. JWST has made the first detections of molecules in rocky exoplanet atmospheres. The challenge is interpreting them unambiguously.
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NASA & Agencies
China's Tiangong station is complete and permanently crewed. Here's what it's doing.
Tiangong, China's modular space station in low Earth orbit, reached its full three-module configuration in 2022 and has maintained a continuous crew since. It conducts experiments in biology, materials science, space medicine, and Earth observation, while serving as the operational backbone of China's long-term human spaceflight program.
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Commercial
Satellites are replaced when they run out of fuel. A nascent industry wants to refuel and repair them instead.
In-space servicing — refueling, repairing, and repositioning satellites — could extend the operational life of billion-dollar space assets by decades. Northrop Grumman's Mission Extension Vehicles have already done it commercially. The next generation aims to do it at scale.
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Missions
NASA's Lucy mission has already upended what we thought about small bodies — and the Trojans haven't started yet
Lucy launched in 2021 to study the Trojan asteroids — ancient leftovers from the solar system's formation that share Jupiter's orbit. Two surprise flyby targets along the way turned out to be binaries, previewing what the Trojans may hold.
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Commercial
The company quietly building the ISS's replacement, one pressurized module at a time
Axiom Space has flown four private astronaut missions to the ISS, is designing the spacesuits for Artemis moon walks, and is under contract to attach its own commercial module to the station before 2030. When the ISS is decommissioned, Axiom's section will detach and operate independently.
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NASA & Agencies
Boeing's crew capsule is still on the ground. What Starliner's failure means for human spaceflight.
Boeing's Starliner flew its first crewed mission in June 2024 — and left two astronauts stranded on the ISS for nine months after thruster failures and helium leaks forced NASA to return the capsule uncrewed. As of mid-2026, Starliner's future remains unresolved.
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Science & Discovery
Magnetars are neutron stars with magnetic fields strong enough to restructure atoms — and they are reshaping our understanding of dense matter
A magnetar packs the mass of the Sun into a sphere the size of a city, then generates a magnetic field 10^15 times stronger than Earth's. The physics at work inside them cannot be reproduced in any terrestrial laboratory — which makes their X-ray and radio bursts the only experimental data we have on matter at nuclear density.
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Missions
Perseverance is building the strongest case yet for ancient life on Mars — one core sample at a time
The Jezero crater delta is the most geologically promising site ever studied on Mars. Perseverance has now cored and cached dozens of samples — including Cheyava Falls, a rock whose leopard-spot textures and organic chemistry are the best candidate biosignatures yet found on another world.
