M104, The Sombrero Galaxy

Solar System: Things to Know This Week

Here are a few things you should know about our solar system this week:

1. Gearing Up for a Grand Finale

There’s just a year left until the Cassini mission begins its Grand Finale – the final phase of its mission, during which the spacecraft will dive repeatedly between the planet and the rings. To get ready, the Cassini team has launched an enhanced, mobile device-friendly version of the mission website. The site includes information about Cassini, Saturn, the moons and the rings – but it also tells the human stories behind one of the most ambitions expeditions of all time.

2.Caught in Transit

On Monday, May 9, the planet Mercury will cross directly in front of the sun, an event that hasn’t occurred since 2006 and won’t happen again until 2019. Find out how to watch HERE.  

3. A Moon for Makemake

Our Hubble Space Telescope has spotted a small, dark moon orbiting Makemake (pronounced “MAH-kay MAH-kay). Make make is the second brightest icy dwarf planet – after Pluto – in the faraway Kuiper Belt.

4. The Age of the Aquarids

The Eta Aquarid meteor shower is the first of two showers that occur each year as a result of Earth passing through dust released by Halley’s Comet. This year, it should peak on the night of May 5/6. Get tips for watching HERE.

5. The Southern Lights of Saturn

On May 4, Cassini will reach periapse, the closest point to Saturn in the spacecraft’s orbit. At about this time, Cassini’s cameras will monitor Saturn’s south polar aurorae, and also image the bright limb of the planet to better understand its upper haze layers.

Want to learn more? Read our full list of the 10 things to know this week about the solar system HERE.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

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Psychedelic Pluto : New Horizons scientists made this false color image of Pluto using a technique called principal component analysis to highlight the many subtle color differences between Plutos distinct regions.

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Dust, stars, and cosmic rays swirling around Comet 67P/Churyumov–Gerasimenko, captured by the Rosetta probe. (Source)

Gravitational Waves Exist: The Inside Story of How Scientists Finally Found Them

How a group of scientists proved Einstein right—and expanded our view of the universe.

M7, Open Star Cluster 

The Belt of Venus is a pink glowing arch seen across the sky when the shadow of the Earth’s translucent atmosphere casts a shadow back upon itself.

LIGO Gravitational Wave Chirp - Chirp pattern of gravitational waves detected by LIGO on September 14, 2015. Credit: LIGO http://www.ligo.org/

NASA just released the most detailed photo of space ever taken 

The picture of the Andromeda galaxy, the nearest spiral galaxy to our own, is comprised of a mind-boggling 1.5 billion pixels and was snapped from 2.5 million light years away by the powerful Hubble Space Telescope.

See it in all its glory