The ocean in the autumn sky

In Northern Hemisphere autumn (Southern Hemisphere spring), you can see a group of constellations that represented an “ocean” to the early stargazers.

Alpheratz belongs to Andromeda, but is part of the Great Square

Alpheratz, the brightest star in the constellation Andromeda, can help you locate the Andromeda Galaxy, the closest large spiral galaxy to our Milky Way home galaxy.

Alpheratz belongs to Andromeda, but is part of the Great Square

Alpheratz, the brightest star in the constellation Andromeda, can help you locate the Andromeda Galaxy, the closest large spiral galaxy to our Milky Way home galaxy.

Aquarius? Here’s your constellation

Aquarius lies in a “watery” part of the sky, near Pisces the Fish, Cetus the Whale, Eridanus the River, and Piscis Austrinus the Southern Fish.

Radiative cooler that cools down even under sunlight

Now that autumn is upon us, there is a large temperature gap between day and night. This is due to the temperature inversion caused by radiative cooling on the Earth’s surface. Heat from the sun during the day causes its temperature to rise and when the sun sets during the night, its temperature cools down. Recently, a research team has demonstrated a daytime radiative cooling effect which exhibits lower temperatures than its surroundings even during the day.

Birth of young moon at day’s end, October 17-20

You might or might not see the moon on October 17, 2020. But you’ll more easily catch it on October 18, 19 or 20. Look west after sunset!

Summer Triangle and galactic equator

You can use the Summer Triangle – and the constellation Cygnus the Swan – to locate the edgewise disk of our Milky Way galaxy.

How leaves reflect light reveals evolutionary history of seed plants

The way leaves reflect light, known as plant reflectance spectra, can illuminate the evolutionary history of seed plants, according to researchers. The researchers found that by measuring the light spectrum reflected by leaves, they can identify the plant and its chemistry, evolution and place in the tree of life.

Autumn’s false dawn, the zodiacal light

The coming weeks are great for catching the zodiacal light or false dawn from northerly latitudes? Southern Hemisphere? Look for the false dusk.

Planting Handful of Seeds in a Bare Yard Could Reduce Stress Levels As Much As 8 Mindfulness Sessions

Including a few plants in a bare front yard could reduce your stress levels as much as eight weekly mindfulness sessions. These are the findings from new research by the Department of Landscape Architecture in collaboration with the UK’s Royal Horticultural Society (RHS). The researchers, at the Universities of Sheffield, Westminster, and Virginia, found that […]

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