The Eye of the Sahara is a giant bullseye in the Mauritanian desert, up to fifty kilometres across, and astronauts were already photographing it from orbit while geologists still believed it was a meteorite impact crater, long before anyone worked out it was something else entirely.

The Richat Structure, the concentric ring formation in the Adrar plateau of Mauritania often called the Eye of the Sahara, was photographed from orbit by the crew of Gemini IV in June 1965, at a time when the leading hypothesis on the…

By Space Daily Editorial Team · Jun 2, 2026

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Water World

Anything that falls into a four-kilometre stretch of a river in the central Peruvian Amazon dies within seconds, because the water reaches temperatures of up to 100 degrees Celsius, despite the river sitting more than 700 kilometres from the nearest active volcano and in a region of the planet with no known magmatic activity.

The river runs through the Mayantuyacu region of central Peru, in the Province of Puerto Inca in Huánuco State, on the eastern flank of the Andes where the foothills give way to the Amazon basin.

By Space Daily Editorial Team · Jun 2, 2026

Constellations

When Rosetta sniffed the gas around Comet 67P, it found a cloud that would have smelled of rotten eggs, ammonia and bitter almonds — and hidden in that cosmic stink were some of the chemical ingredients that may have helped life begin on Earth

Between 2014 and 2016, the European Space Agency's Rosetta spacecraft flew alongside Comet 67P/Churyumov-Gerasimenko and analysed the gas streaming off it.

By Space Daily Editorial Team · Jun 2, 2026

Constellations

Mars was once a warmer world of rivers, lakes and a thicker atmosphere, but after its internal dynamo died and the planet lost the magnetic shield that helps protect an atmosphere, the solar wind stripped much of its air away over billions of years, leaving the cold desert we see today

The familiar version goes like this. Early Mars was a warmer world with rivers and lakes and a thick atmosphere.

By Space Daily Editorial Team · Jun 2, 2026

Psychology

We talk about anxiety as if it starts in the mind — but for some people, the eyes may be the first place it shows up

The first sign was never a thought. It was visual. Something in the way the room looked.

By Nato Lagidze · Jun 2, 2026

Psychology

Thought of the day from Stoic philosopher Marcus Aurelius: "Each of us lives only now, this brief instant. The rest has been lived already, or is impossible to see."

The kettle is doing its thing. Light is coming in sideways across the kichen table, the way it does early, catching the steam coming off the cup.

By Mal James · Jun 2, 2026

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Mind & Meaning

The psychology of ambition, isolation, and meaning under extremes — and what frontier life teaches us about being human.

Science

The Eye of the Sahara is a giant bullseye in the Mauritanian desert, up to fifty kilometres across, and astronauts were already photographing it from orbit while geologists still believed it was a meteorite impact crater, long before anyone worked out it was something else entirely.

By Space Daily Editorial Team

Constellations

When Rosetta sniffed the gas around Comet 67P, it found a cloud that would have smelled of rotten eggs, ammonia and bitter almonds — and hidden in that cosmic stink were some of the chemical ingredients that may have helped life begin on Earth

By Space Daily Editorial Team

Constellations

Mars was once a warmer world of rivers, lakes and a thicker atmosphere, but after its internal dynamo died and the planet lost the magnetic shield that helps protect an atmosphere, the solar wind stripped much of its air away over billions of years, leaving the cold desert we see today

By Space Daily Editorial Team

Constellations

In 2017, astronomers spotted the first object ever confirmed to have come from another star system passing through our own: a strange, elongated visitor called ‘Oumuamua that seemed to accelerate as it left, in a way scientists are still debating

By Space Daily Editorial Team

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Physics, climate, planetary science, and the research that shapes how we understand the universe.

Science

The Eye of the Sahara is a giant bullseye in the Mauritanian desert, up to fifty kilometres across, and astronauts were already photographing it from orbit while geologists still believed it was a meteorite impact crater, long before anyone worked out it was something else entirely.

By Space Daily Editorial Team

Mind & Meaning

Cats can't taste sweetness — evolution turned off the relevant gene in their distant ancestors when they became obligate carnivores, and without working sweet receptors, a cat is as indifferent to sugar as a person is to ultraviolet light

By Space Daily Editorial Team

Science

Tyrannosaurus rex lived closer in time to humans than to Stegosaurus — the gap between T. rex and the present day is about 66 million years, while the gap between T. rex and Stegosaurus is about 83 million years, which means T. rex would have seen Stegosaurus as an ancient creature in the same way we see T. rex now

By Space Daily Editorial Team

Science

There is a species of jellyfish that is essentially immortal — Turritopsis dohrnii, which can revert from its adult form back to its juvenile polyp stage when stressed or injured, and then mature again, potentially repeating the cycle indefinitely, in the only known case of a complex animal that can reverse its own aging process

By Space Daily Editorial Team

About Space Daily

Space, science, and the human side of the frontier. Since 1995.

Space Daily is an independent publication covering three connected beats: the space industry, the science behind it, and the psychology of ambition, isolation, and meaning under extremes. Founded in Tokyo in 1995, we’ve built a thirty-year archive of rigorous reporting on the people, missions, and ideas pushing humanity outward — and on the human dynamics shaped by frontier life. The same ambitions, pressures, and patterns of mind that drive humanity to the stars also shape how we live on Earth. We employ modern AI technologies to support our editorial workflows; every published piece is editorially directed and reviewed.

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The Eye of the Sahara is a giant bullseye in the Mauritanian desert, up to fifty kilometres across, and astronauts were already photographing it from orbit while geologists still believed it was a meteorite impact crater, long before anyone worked out it was something else entirely.

When Rosetta sniffed the gas around Comet 67P, it found a cloud that would have smelled of rotten eggs, ammonia and bitter almonds — and hidden in that cosmic stink were some of the chemical ingredients that may have helped life begin on Earth

Mars was once a warmer world of rivers, lakes and a thicker atmosphere, but after its internal dynamo died and the planet lost the magnetic shield that helps protect an atmosphere, the solar wind stripped much of its air away over billions of years, leaving the cold desert we see today

We talk about anxiety as if it starts in the mind — but for some people, the eyes may be the first place it shows up

Thought of the day from Stoic philosopher Marcus Aurelius: "Each of us lives only now, this brief instant. The rest has been lived already, or is impossible to see."

The Eye of the Sahara is a giant bullseye in the Mauritanian desert, up to fifty kilometres across, and astronauts were already photographing it from orbit while geologists still believed it was a meteorite impact crater, long before anyone worked out it was something else entirely.

When Rosetta sniffed the gas around Comet 67P, it found a cloud that would have smelled of rotten eggs, ammonia and bitter almonds — and hidden in that cosmic stink were some of the chemical ingredients that may have helped life begin on Earth

Mars was once a warmer world of rivers, lakes and a thicker atmosphere, but after its internal dynamo died and the planet lost the magnetic shield that helps protect an atmosphere, the solar wind stripped much of its air away over billions of years, leaving the cold desert we see today

In 2017, astronomers spotted the first object ever confirmed to have come from another star system passing through our own: a strange, elongated visitor called ‘Oumuamua that seemed to accelerate as it left, in a way scientists are still debating

The Eye of the Sahara is a giant bullseye in the Mauritanian desert, up to fifty kilometres across, and astronauts were already photographing it from orbit while geologists still believed it was a meteorite impact crater, long before anyone worked out it was something else entirely.

Cats can't taste sweetness — evolution turned off the relevant gene in their distant ancestors when they became obligate carnivores, and without working sweet receptors, a cat is as indifferent to sugar as a person is to ultraviolet light

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