
A single day on Mercury, from one sunrise to the next, lasts 176 Earth days, which…
A year on Mercury is 88 Earth days. A day, oddly, is longer than that. The reason is a slow spin locked to a fast orbit in a ratio nobody expected.
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A year on Mercury is 88 Earth days. A day, oddly, is longer than that. The reason is a slow spin locked to a fast orbit in a ratio nobody expected.
Jun 13, 2026

If you sat down to eat with a 95-year-old Sardinian shepherd, an 87-year-old Ikarian widow, a 92-year-old Okinawan farmer, and a 100-year-old Costa Rican grandmother all on the same day, the meals would look completely different from one another.
Jun 13, 2026

An ideas that a lot of people have is that well-being declines on a fairly straight line.
Jun 13, 2026

The site is called Huseby Klev. It sits on the island of Orust on the western coast of Sweden, about an hour's drive north of Gothenburg.
Jun 12, 2026

Many of us live as though happiness is something earned. Land the job, secure the relationship, hit the income figure, fix the health problem, and contentment will follow.
Jun 12, 2026

No one built it, and no one was around to remember it. The Oklo reactors switched themselves on and off for ages before complex life existed on Earth. The only reason anyone knows is a faint shortage of uranium-235 that turned up in a French laboratory in 1972.
Jun 12, 2026

In 1994, a New South Wales park ranger rappelled into a sandstone canyon 150 kilometres from Sydney and walked into a stand of conifers the fossil record had marked extinct for 90 million years. Fewer than 100 wild Wollemi pines still grow in that single grove.
Jun 12, 2026

You receive an email from someone you know. The subject line reads, simply, "ILOVEYOU.
Jun 12, 2026

We are not clinicians. This article reports on survey data about teen attitudes toward social media; it is not medical or psychological advice.
Jun 12, 2026

Sometime around midday on April 20, 2021, a microwave-sized device on Mars finished its first hour of work and reported back to its operators at the Massachusetts Institute of Technology.
Jun 12, 2026

Dogs and humans have lived alongside one another for approximately 15,000 years.
Jun 12, 2026

There is a phrase that Okinawans of an older generation often murmur to themselves before sitting down to eat: hara hachi bu.
Jun 12, 2026

It is one of the more difficult sentences to write with a straight face in modern history: in 1932, Australia declared war on a flock of large flightless birds, and the birds won.
Jun 12, 2026

On July 22, 1962, NASA's first planetary probe was destroyed 293 seconds after launch because a single overbar had been left off a line of guidance code. Arthur C. Clarke's verdict — 'the most expensive hyphen in history' — captured something new about the scale at which small mistakes had begun to matter.
Jun 12, 2026

SpaceX alone flew more than 130 Falcon missions in 2024, and with Cape Canaveral, Vandenberg and Wallops booked through the decade, American launch capacity is hitting a wall.
Jun 12, 2026

On 26 September 2022, NASA's Double Asteroid Redirection Test spacecraft struck Dimorphos, a roughly 150-metre moonlet orbiting the larger asteroid Didymos, about 11 million kilometres from Earth.
Jun 12, 2026