Mars Archives

Venera 13 Venus Probe Creative Commons Photo

Aerospace & Defense

Venus Takes 243 Earth Days to Turn Once on Its Axis and 224.7 Earth Days to Circle the Sun. Its Equator Creeps Along at About 4 Miles per Hour — Slower Than a Person Walks — While the Planet Itself Races Through Space at 78,000 Miles per Hour.

Venus is the closest thing to a twin Earth has, and almost nothing about how it moves makes sense. It turns once every 243...

Harrison Kass4 days ago

Aerospace & Defense

The Moon Is Not a Detour From Mars: It Is the Only Place a Mars Program Can Afford to Fail

A crew on the Moon is roughly three days from Earth and can abort home. A crew bound for Mars is seven to nine...

Brandon WeichertAugust 9, 2026

Aerospace & Defense

The Mars Launch Window Opens in November 2026 and Closes About a Month Later. The Next One Is in 2029.

Earth takes 365 days to orbit the Sun and Mars takes about 687, so the two planets line up for an efficient transfer only...

Harrison KassAugust 9, 2026

Aerospace & Defense

NASA Set a Launch Date of 31 October 1973 to Send Three Astronauts Past Venus. The Mission Would Have Lasted 396 Days.

Most people associate Apollo exclusively with the Moon, which makes sense, given that Apollo only ever went there. But after the lunar landing, NASA...

Harrison KassAugust 6, 2026

Space and Technology

Inside Mars’s Jezero Crater, once a lake and river delta, NASA’s Perseverance rover found complex carbon molecules built from the same four elements as all life on Earth — yet no one can yet say whether biology or ordinary chemistry made them.

NASA's Perseverance rover has found complex, ring-shaped carbon molecules sealed inside rocks in Mars's Jezero Crater, a basin that billions of years ago held...

Harrison KassJuly 27, 2026

Space and Technology

In July 2028 NASA launches a car-sized, 1,000-pound nuclear drone toward Saturn’s moon Titan, a six-year, $3.35 billion trip to a world where the air is four times denser than Earth’s, gravity is one-seventh as strong, and flying is the easy part.

NASA is about to try something it has never attempted: instead of another six-wheeled rover, it will fly a car-sized, plutonium-powered drone across the...

Harrison KassJuly 24, 2026

Psyche Asteroid Artist's Concept NASA Photo

Space and Technology

NASA’s Psyche Spacecraft Passed Within 2,864 Miles of Mars, Gained 1,000 MPH Without Using Onboard Propellant, and Is Now Headed for a Metal World That May Be an Early Planet’s Exposed Core

On May 15, 2026, NASA's Psyche spacecraft skimmed past Mars and came away a thousand miles per hour faster without burning a drop of...

Harry J. KazianisJuly 12, 2026

This composite image, from NASA's Galileo and Mars Global Survey orbiters, of Earth and Mars was created to allow viewers to gain a better understanding of the relative sizes of the two planets.

Space and Technology

Mars once had rivers, lakes, and possibly oceans, and it lost all of them for one reason — its molten core cooled, its magnetic field died, and the solar wind stripped the planet’s air into space.

Mars wasn't always frozen and barren. Billions of years ago it had flowing rivers, standing lakes, and possibly oceans. It lost all of it...

Harrison KassJuly 7, 2026

Space and Technology

At 70,000 Feet, Olympus Mons on Mars Stands Two and a Half Times Taller Than Mount Everest. It Is the Largest Volcano in the Solar System, and It May Not Be Extinct

A person standing on the largest volcano in the solar system would never know it. Olympus Mons rises 70,000 feet over Mars on slopes...

Harry J. KazianisJuly 5, 2026

This artistic impression depicts our Solar System neighbour Venus, where scientists have confirmed the detection of phosphine molecules. The molecules were detected in the Venusian high clouds in data from the James Clerk Maxwell Telescope and the Atacama Large Millimeter/submillimeter Array, in which ESO is a partner. Astronomers have speculated for decades that life could exist in Venus’s high clouds. The detection of phosphine could point to such extra-terrestrial “aerial” life.

Space and Technology

Terraforming Venus means removing 90 Earth atmospheres of carbon dioxide, cooling a planet that melts lead, and importing an ocean — the newest NASA idea skips all of it

Venus crushes, roasts, and corrodes anything that touches it, and it has almost no water. But fifty kilometers up, the pressure matches Earth's —...

Harry J. KazianisJuly 5, 2026

19FortyFive

All posts tagged "Mars"

Aerospace & Defense

Venus Takes 243 Earth Days to Turn Once on Its Axis and 224.7 Earth Days to Circle the Sun. Its Equator Creeps Along at About 4 Miles per Hour — Slower Than a Person Walks — While the Planet Itself Races Through Space at 78,000 Miles per Hour.

Aerospace & Defense

The Moon Is Not a Detour From Mars: It Is the Only Place a Mars Program Can Afford to Fail

Aerospace & Defense

The Mars Launch Window Opens in November 2026 and Closes About a Month Later. The Next One Is in 2029.

Aerospace & Defense

NASA Set a Launch Date of 31 October 1973 to Send Three Astronauts Past Venus. The Mission Would Have Lasted 396 Days.

Space and Technology

Inside Mars’s Jezero Crater, once a lake and river delta, NASA’s Perseverance rover found complex carbon molecules built from the same four elements as all life on Earth — yet no one can yet say whether biology or ordinary chemistry made them.

Space and Technology

In July 2028 NASA launches a car-sized, 1,000-pound nuclear drone toward Saturn’s moon Titan, a six-year, $3.35 billion trip to a world where the air is four times denser than Earth’s, gravity is one-seventh as strong, and flying is the easy part.

Space and Technology

NASA’s Psyche Spacecraft Passed Within 2,864 Miles of Mars, Gained 1,000 MPH Without Using Onboard Propellant, and Is Now Headed for a Metal World That May Be an Early Planet’s Exposed Core

Space and Technology

Mars once had rivers, lakes, and possibly oceans, and it lost all of them for one reason — its molten core cooled, its magnetic field died, and the solar wind stripped the planet’s air into space.

Space and Technology

At 70,000 Feet, Olympus Mons on Mars Stands Two and a Half Times Taller Than Mount Everest. It Is the Largest Volcano in the Solar System, and It May Not Be Extinct

Space and Technology

Terraforming Venus means removing 90 Earth atmospheres of carbon dioxide, cooling a planet that melts lead, and importing an ocean — the newest NASA idea skips all of it

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