NOAA diagram of the ocean's light zones: the euphotic zone to 200 metres, the dysphotic zone from 200 to 1,000 metres, and the aphotic zone below 1,000 metres. Credit: NOAA National Ocean Service.

Representative image. Photo by Enes Sözen on Pexels. A night-migrating robin can choose a seasonally appropriate direction inside a featureless cage even when stars and landmarks are unavailable.

The Interislander ferry between Wellington and Picton carries tourists, freight trucks, and commuters across a stretch of the Cook Strait most of them assume is just water between two New Zealand ...

NASA visualisation of the universe's present-day mass-energy budget, rounded to 5 per cent visible matter, 27 per cent dark matter and 68 per cent dark energy. Credit: NASA Goddard Space Flight Center ...

Ask anyone to describe the Great Pyramid of Giza and you get the same shape: four smooth triangular faces meeting at a point, a square base. And that was probably close to how the finished monument ...

There’s a small puzzle in the most famous photograph Voyager 1 ever took. The spacecraft looked back at Earth, caught it as a speck of light, and just 34 minutes later stopped seeing anything at all.

Space Exploration Technologies Corporation was incorporated in California in 2002, by Elon Musk after the PayPal era had made him wealthy enough to attempt something most investors still considered ...

You could have walked the full length of Kowloon Walled City in under three minutes, if the alleys had run in straight lines. They did not. The block measured 210 metres by 120 metres, about 2.6 ...

Tom Mueller helped build the engines that made Falcon 9 and Dragon work, and his next company has now raised more than $1 billion to solve a quieter problem: what happens after a rocket lets go of its ...

This article is preserved from an earlier Space Daily editorial era. It has not been substantively reviewed under our current standards. The growth in government spending on space may surpass US$50 ...

According to the WMO, the meteorological station at Verkhoyansk has been observing temperatures since 1885, one of the longer records anywhere in the high north. The town has a population of slightly ...

In 1949, American occupation authorities ran a food-intake survey across Okinawa and recorded something that would occupy nutritionists for the next fifty years: the islanders were getting roughly 69 ...