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Math on Voyager's Golden Record Tells a Story

Copies of the Golden Record, sent journeying into deep space on the sides of the Voyager 1 and Voyager 2 probes in 1977, carries the sounds and music of Earth as well as a series of images to help characterize it.

The Voyager 1 probe, which launched 40 years ago today (Sept. 5), is humankind's most distant physical emissary, at almost 13 billion miles (21 billion kilometers) from Earth. Voyager 1 and its sister-spacecraft, Voyager 2, which launched two weeks earlier in 1977,

By Sarah Lewin Space.com 9-5-17

gave scientists their first close-up views of Jupiter, Saturn, Uranus and Neptune. And the spacecraft famously carried with them what could be aliens' first views of Earth, its inhabitants and their culture: copies of the Golden Record.

The astronomer and science popularizer Carl Sagan curated the record selections, and it carried sounds and music from Earth as well as greetings in 55 languages. But the record also contains encoded photos seeking to teach aliens the mathematics — or really, the measurements — needed to understand humans' lives and their place in the universe.

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Most Detailed 3D Atlas of a Billion Stars Released by ESA | VIDEO

• Satellite is now just over half-way through its five-year mission and the first batch of data has been released • The one billion stars it has located are still only one per cent of the Milky Way's estimated stellar population

Abigail Beall Mailonline 9-14-16

• Gaia's mapping effort is already unprecedented in scale, but the satellite still has several years left to run

• In the future Gaia will collect data about each star's temperature, luminosity and chemical composition

Esa has unveiled a stunning 3D map of a billion stars in our galaxy that is 1,000 times more complete than anything that previously existed.

The data for the map was collected by a space-based probe called Gaia, which has been circling the sun nearly a million miles beyond Earth's orbit since its launch in December 2013.

On its journey, the satellite has been discreetly snapping pictures of the Milky Way.

Now the European Space Agency has released the first batch of data collected by Gaia, which includes information on the brightness and position of over a billion stars. ...

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