explainer Space
Gravity on Venus: how strong is it compared with Earth?
Gravity on Venus is 8.87 m/s², about 90% of Earth's. See the NASA values, the GM/R² calculation, what you would weigh, and why Venus is still deadly.
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Category: Space
explainer Astronomy
How long does it take to get to each planet? Real mission times
How long does it take to get to each planet? From 94 days to Venus to 12 years for Neptune: real NASA and ESA mission times, Hohmann math and gravity…
news Astronomy Evidence status: Peer reviewed · Observational study of one planet
JWST maps WASP-17b’s atmosphere: evening edge runs about 650 K hotter
JWST mapped hot Jupiter WASP-17b's atmosphere angle by angle: the evening edge is about 650 K hotter and puffier than the morning edge. How, and the catch.
explainer Astronomy
How long does it take to get to Mars? Mission times and the math
How long does it take to get to Mars? About 7 to 10 months. See NASA mission travel times, the Hohmann transfer math, launch windows and crewed trip estimates.
Explainer Space
Gravity on other planets: surface gravity of planets and major moons
Surface gravity ranges from 0.62 m/s² on Pluto to 25.9 m/s² on Jupiter. See NASA values for every planet and major moon, and what you would weigh.
News Astronomy Evidence status: Peer reviewed · Telescope observations
Hubble Finds a Giant 10-Sided Wave Around Saturn’s South Pole
Hubble tracked an immense, evolving decagon-shaped atmospheric wave around Saturn’s south pole, creating a striking counterpart to its northern hexagon.
News Astronomy Evidence status: Peer reviewed · Observational study with forward modelling
The Universe Is Making Fewer Stars—but It Hasn’t Run Out of Fuel
Astronomy · Peer reviewed. Star formation fell much faster than the universe’s atomic-hydrogen supply, shifting attention from fuel loss to fuel conversion.
News Physics Evidence status: Preprint · Single anomalous event
LUX-ZEPLIN Recorded One Unexplained Flash—Not Dark Matter Yet
Physics · Preprint. One high-energy nuclear-recoil candidate survived LZ’s analysis, making it intriguing—but far from a dark-matter discovery.
News Astronomy Evidence status: Peer reviewed · Model-based geophysical inference
Mars Is 200–400°C Hotter Beneath Its Southern Highlands
Sixteen years of spacecraft tracking indicate a much warmer, softer mantle beneath southern Mars, though the temperatures are model-based.