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Juno to enter Jupiter orbit July 4

Juno will fly closer to Jupiter than any spacecraft yet, into the harshest radiation environment in the solar system.

Astronomy festivals, star parties, workshops

Looking for something to do on the weekends? At star parties, amateur astronomers with telescopes will show you the night sky. Find one near you …

July 2016 guide to the 5 bright planets

See all 5 bright planets together this month! Jupiter, Mars and Saturn are bright and easy all month. After mid-July, Venus and Mercury snuggle in evening twilight.

Tracking Venus in 2016 and ’17

Looking for Venus? It’ll soon come into view in the west after sunset. This video tracks Venus from when it reappears again by mid-July, 2016 … to April, 2017.

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How do octopuses change their color?

Incredible color-changing! How – and why – the octopus, squid, and cuttlefish change color.

Asteroid Day 2016 is June 30

Hundreds of events – films, concerts, panels with engineers, scientists and astronauts – about asteroids and how to protect our planet from asteroid impacts.

Known asteroids near Earth today

The first map shows all the known asteroids within one-third of Earth’s distance from the sun today – Asteroid Day – June 30, 2016. Look below for a second map.

Today in science: The Tunguska explosion

On June 30, 1908, an explosion over Siberia killed reindeer and flattened trees. But no crater was ever found. It may have been a small asteroid.

Join astronomers in tracking asteroids

Sign up to trigger asteroid observations on a global telescope network on Asteroid Day, June 30. Anyone can help! Sign up by 00:00 UTC on July 1.

Where’s the moon? Waning crescent

A waning crescent moon is sometimes called an old moon. It’s seen in the east before dawn.

Surprise! Some mantas are homebodies

Oceanic manta rays have long been thought to migrate great distances. But Indo-Pacific mantas, at least, are more local commuters than long-distance travelers.

Juno on Jupiter’s doorstep

Juno spacecraft on approach to Jupiter! The craft will arrive at Jupiter on July 4, first spacecraft to orbit the giant planet since Galileo (1995-2003).

EarthSky’s meteor shower guide for 2016

2016 will be a great year for watching meteors in late July and early August. A dark sky is best … peak time is late night to dawn.