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solar system

Environment

Plug-in solar is coming – how dangerous is it and is it worth it?

Plug-in solar panels are a cheaper, simpler alternative to professionally installed panels. But can they really reduce energy bills and are they safe? Matthew Sparkes investigates

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Space

Earth may have formed from two separate rings around the sun

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Space

Mysterious comet disintegration caught by telescope after lucky break

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Space

We’ve spotted a huge asteroid spinning impossibly fast

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Space

NASA changed an asteroid's orbit around the sun for the first time

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Space

How to see six planets in the sky at once in rare celestial alignment

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From images taken by NASA spacecrafts, this picture mosaic was created of six of the planets in our solar system and the Earth's moon. In the foreground is the Earth rising over the lunar surface with the sun flare at the edge of Earth. Venus is the first planet above the moon, and at the top left to right are the planets Jupiter, Mercury, Mars and Saturn. Photo credits are as follows: Earth - Apollo 17; Lunar Surface - Apollo 8; Sun - Apollo 12; Venus - Pioneer Venus; Jupiter - Voyager I; Mercury - Mariner 10; Saturn - Pioneer 11.

Space

What to read this week: Ripples on the Cosmic Ocean by Dagomar Degroot

Culture

Vitiligo skin pigmentation on the hands of woman

Health

Landmark vitiligo cream targets immune cells that disrupt pigmentation

News

Space

Saturn’s rings may have formed after a huge collision with Titan

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Environment

This state’s power prices are plummeting as it nears 100% renewables

South Australia is proving to the world that relying largely on wind and solar energy with battery back-up is incredibly cheap, with electricity prices tumbling by 30 per cent in a year and sometimes going negative

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Space

Synchronised volcanic eruptions on Io hint at a spongy interior

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Health

This virus infects most of us – but why do only some get very ill?

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Space

Mars's gravity may help control Earth’s cycle of ice ages

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Space

Our solar system is extremely weird: Best ideas of the century

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