What’s the source of the ice at the moon’s south pole?

A new study from Brown University suggests that different deposits of south polar moon ice not only have different sources, but also vary greatly in age.

Watch 1st all-female spacewalk

Watch 2 NASA astronauts aboard the International Space Station (ISS) make history by performing the 1st ever all-female spacewalk on Friday.

New telescope to ‘see inside’ hot Jupiter exoplanets

Exoplanets – worlds orbiting distant suns – are very, very far away. Astronomers are learning what some might look like, and what’s in their atmospheres. Soon – for the first time – a new telescope will be able to “see inside” some exoplanets.

All you need to know: Orionid meteor shower

Details on the annual Orionid meteor shower.  How and when to watch. In 2019, the peak mornings are probably October 21 or 22. But try watching now, before dawn, despite a bright moon.

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Tiny stature of extinct ‘Hobbit’ thanks to fast evolution

New research suggests that the tiny human species – that survived until about 18,000 years ago, later than any human species other than our own – evolved its small size remarkably quickly while living on an isolated island.

Researchers investigate dramatic melt of glaciers in Peru

Glaciers are melting in many places on Earth today. But glacier loss in the Peruvian Andes is happening particularly rapidly. New research reports a reduction of almost 30% between 2000 and 2016.

Venus from now to next June

Northern and Southern Hemisphere views of Venus from October 2019 to June 2020, and some insights on the coming view of Venus in the evening sky.

While still in the womb, humans have extra lizard-like muscles in their hands

Research involving a non-invasive scan of living human embryos shows that some muscles, thought to have been abandoned by our mammalian ancestors 250 million years ago, are still present before birth. They’re among the oldest, albeit fleeting, remnants of evolution yet seen in humans.

All you need to know: 2019’s Hunter’s Moon

The coming full moon – Hunter’s Moon for the Northern Hemisphere – is October 12-13. Will it be bigger, brighter, more colorful? All you need to know here.

It’s been 20 years since the Day of 6 Billion

Our global human population was estimated to reach 6 billion on today’s date in 1999. Eleven years later, in 2011, Earth had gained another billion people. Today – October 12, 2019 – it stands at about 7.7 billion, according to United Nations estimates.

The last mammoths died on a remote island

A new study suggests that about 4,000 years ago, a combination of isolation, extreme weather, and the arrival of humans on Wrangel Island in the Arctic Ocean killed off Earth’s last population of mammoths.

How deep is the ocean?

On average the ocean is 2.3 miles (3.7 km) deep, but many parts are much shallower or deeper. In the deepest zones, life forms have adapted to live in the dark, under crushing water pressure.

These alien geysers spew life’s building blocks

The Cassini mission to Saturn is over, but scientists still pore over its data. The newest discovery is of organic compounds – the ingredients of amino acids, the building blocks of life – in water vapor plumes from Saturn’s moon Enceladus.