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Voyager’s Valentine Turns 25 Today

If you’re in love with space exploration then you’ll fall for this: it’s the picture of Earth taken from the Voyager 1 spacecraft after it passed the orbit of Pluto in 1990. That image of our planet from almost 4 billion miles away inspired Carl Sagan to write his famous “Pale Blue Dot” passage, and reminds us that we are all just floating on “a mote of dust suspended in a sunbeam.”

This is from a post I originally published in 2010. I’ll keep trotting it out until it’s not cool anymore. (Which I don’t think will ever happen.)

Venus, Earth, Jupiter, Saturn, Uranus and Neptune as seen by Voyager 1 in 1990 (Credit: NASA)

On February 14, 1990, after nearly 13 years of traveling the solar system, the Voyager 1 spacecraft passed the orbit of Pluto and turned its camera around to take a series of photos of the planets. The image above shows those photos, isolated from the original series and are left to right, top to bottom: Venus, Earth, Jupiter, Saturn, Uranus, and Neptune.

From that distance, over 4 billion miles from the Sun, the planets each appear as little more than a bright dot against the vastness of interplanetary space.

“That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. … There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world.”

– Carl Sagan

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New Horizons Grabs Its First On-Approach Images of Pluto

Pluto and Charon captured by New Horizons on Jan. 25 and 27, 2015. (Credits: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)

Pluto and Charon captured by New Horizons on Jan. 25 and 27, 2015. (Credits: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)

After more than nine years of rocketing outwards through the Solar System, NASA’s New Horizons spacecraft is now zeroing in on its targets: the dwarf planet Pluto and its family of frozen moons, orbiting the Sun over three billion miles away from Earth.

The images above show Pluto and its largest moon Charon on January 25 and 27, captured by the spacecraft’s LORRI (Long Range Reconnaissance Orbiter) camera. These are the first pictures of the two worlds to be taken during the approach phase of the mission (which New Horizons officially began in on Jan. 15.)

“Pluto is finally becoming more than just a pinpoint of light. LORRI has now resolved Pluto, and the dwarf planet will continue to grow larger and larger in the images as New Horizons spacecraft hurtles toward its targets.”
– Hal Weaver, New Horizons project scientist at the Johns Hopkins University Applied Physics Laboratory

What’s more, these images were released on Feb. 4, which is the birthday of Pluto’s discoverer Clyde Tombaugh (1906–1997).

This July New Horizons will become the first spacecraft ever to make a close pass of Pluto, revealing it in intimate detail for the first time. These LORRI images are just a tiny tease at what’s in store!

Read the rest of my story on Discovery News here, and learn more about Pluto and the mission here.

New Horizons Captures Pluto and Charon Orbiting

Animation of Pluto and Charon showing nearly a full rotation (NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)

Animation of Pluto and Charon showing nearly a full rotation (NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)

Whether you think Pluto is a planet, a dwarf planet, a Kuiper Belt Object – or something else entirely – you should still be fascinated by this: a video of the dwarf planet Pluto and its largest moon Charon showing the two distinctly separate worlds actually in motion around each other! Captured by the New Horizons spacecraft from July 19–24, the 12 images that comprise this animation were acquired with the Long Range Reconnaissance Imager (LORRI) instrument from distances of 267 million to 262 million miles (429 million to 422 million km) and show nearly a full orbital rotation. Amazing!

Read more and see a close-up of these two distant worlds in my article on Universe Today here.

What Is Pluto? A New Video from New Horizons

Is Pluto a planet? A dwarf planet? A Kuiper Belt Object? All — or none — of the above?

Pluto has been a topic of scientific fascination since Clyde Tombaugh discovered it in February 1930, and then a topic of controversy after the IAU reclassified it as a dwarf planet in 2006. While conversations continue over Pluto’s planetary identity, at least one theme carried through the talks at the Pluto Science Conference in July 2013. See if you can figure out what it is in the video above! (Hint: it’s not difficult.)

NASA’s New Horizons mission will help us understand worlds at the planetary frontier by making the first reconnaissance of Pluto in July 2015. Read more about the mission here.

#plutolives

Credit: NASA/JHUAPL/SwRI

Voyager’s Long-Distance Valentine

This is from a post I originally published in 2010. I’ll keep trotting it out until it’s not cool anymore. (Which I don’t think will ever happen.)

Venus, Earth, Jupiter, Saturn, Uranus and Neptune as seen by Voyager 1 in 1990 (Credit: NASA)

On February 14, 1990, after nearly 13 years of traveling the solar system, the Voyager 1 spacecraft passed the orbit of Pluto and turned its camera around to take a series of photos of the planets. The image above shows those photos, isolated from the original series and are left to right, top to bottom: Venus, Earth, Jupiter, Saturn, Uranus, and Neptune.

From that distance, over 4 billion miles from the Sun, the planets each appear as little more than a bright dot against the vastness of interplanetary space. And Voyager was still a long ways off from reaching the “edge” of our solar system, the bubble of energy emitted by the Sun in which all of the planets, moons, and asteroids reside. In fact, Voyager 1 still has an expected five years to go before it crosses that boundary and truly enters interstellar space.*

“That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. … There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world.”

– Carl Sagan

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Fastest, Farthest, First: New Horizons Closing in on Pluto


It’s a journey spanning 85 years and billions of miles: humanity’s first-ever encounter with the dwarf planet system of Pluto and Charon, located in the frozen far reaches of our Solar System where our entire planet is a barely-visible pale blue dot — just a “mote of dust suspended in a sunbeam.” Launched in 2006, the New Horizons spacecraft will pass by Pluto in July 2015 and send back images and data in unprecedented detail, 85 years after its discovery. With the flyby just about a year and a half away, the excitement in the space community is rapidly building even now.

The video above is a “teaser” for the event from the Applied Physics Laboratory at Johns Hopkins University — check it out. (Warning: may contain scenes of intense scientific discovery!) Also, watch a longer documentary below on the history of Pluto and the New Horizons mission:
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