See Mars...no scope needed! Look up & to right of the moon to see Mars at closest approach

See Mars...no scope needed! Look up & to right of the moon to see Mars at closest approach: https://t.co/1RUrPu86tU pic.twitter.com/BzRzNHf5XW

— NASA (@NASA) May 30, 2016

Viewing Satellites from International Space Station | ESA Astronaut Tim Peake

Do we see other satellites in space? Not often with the naked eye but our cameras pick them out – take a lookhttps://t.co/KnElU518Gc

— Tim Peake (@astro_timpeake) May 24, 2016

Crescent Dunes Solar Energy Project in California | Astronaut Jeff Williams | International Space Station

Crescent Dunes Solar Energy Project creates intense light shows visible for 1000's of miles https://t.co/iFTQd2KICB pic.twitter.com/d0BA89g0Fr

— Jeff Williams (@Astro_Jeff) May 24, 2016

"A window to the dawn of the universe. NASA's James Webb Space Telescope exemplifies our commitment to breathtaking innovations." | Northrop Grumman

A window to the dawn of the universe. @NASAWebbTelescp exemplifies our commitment to breathtaking innovations. #JWSThttps://t.co/ZRfJNujlXl

— Northrop Grumman (@northropgrumman) May 19, 2016

"Simply never a dull moment looking out of the window...planet Earth is mesmerising!" | ESA Astronaut Tim Peake | International Space Station

Simply never a dull moment looking out of the window...planet Earth is mesmerising! #timelapse #lightninghttps://t.co/DeS4QkB4T7

— Tim Peake (@astro_timpeake) May 19, 2016

Earth: May 12, 2016 | NOAA/NASA DSCOVR

Earth: May 12, 2016 Image Gallery | NOAA/NASA DSCOVR

ESA Astronaut Tim Peake at work | International Space Station

100,000 orbits! | International Space Station

International Space Station Marks 100,000 Orbits of Earth!

The Orion Nebula in Visible and Infrared Light

Hunting Exoplanets | NASA 360

Fort McMurray Fires Continue in Alberta, Canada: View 2 | NASA

Fort McMurray Fires Continue in Alberta, Canada: View 1 | NASA

Exploring Neptune's Captured Kuiper Belt Object | NASA 360

Goodnight Earth | International Space Station

Saturn's Rings: The Sculptors | NASA's Cassini Mission

Commander Tim Kopra of Texas | International Space Station

SpaceX: Looking up from Falcon Rocket Launch Pad 40

Unique Mountain of South America | International Space Station

Three Nanosats Launched | International Space Station

Earth Lightning Lights Up Solar Panels! | International Space Station

The International Space Station Has Made Its 100,000th Orbit!

Aswan High Dam, Egypt | International Space Station

Tel Aviv, Israel at night | International Space Station

Cubesats launch | International Space Station

Spica: "The Brightest, Bluest Star in the Sky"

Star Clusters Circle Galaxy Like "Busy Bees" | Hubble

The Helix Nebula | NASA's Spitzer Space Telescope

Goodnight from the International Space Station!

Istanbul, Turkey | International Space Station

Mozambique coral reefs, Indian Ocean | International Space Station

Himalayan Mountain Peaks | International Space Station

Red sand dunes of Arabian Peninsula | International Space Station

Transit of Mercury near Sunrise

Saturn's Moon Epimetheus: Hard Knock Life | NASA Cassini

Alaska | International Space Station

Bering Sea Ice, Russia | International Space Station

Greece | International Space Station

NASA's Kennedy Spaceport Magazine for May 2016

Mercury Closeup: Solar Transit 2016

Solar Activity: Last 48 hours on The Sun | NASA SDO | HD Video

Irrawaddy Delta, Myanmar | International Space Station

Cuba, Florida & Bahamas | International Space Station

Inside NASA's Kennedy Space Center! | Week of May 13, 2016

NASA EDGE: Game Changing Entry, Descent and Landing - Part 1

Favourite reef of The Bahamas | International Space Station

The Helix Nebula | NASA's GALEX Space Telescope

The Crescent Nebula

SpaceX Falcon 9 Launch and The Milky Way

Whakaari, Bay of Plenty, New Zealand | Earth | Satellite

SpaceX Dragon prepared for Earth return | International Space Station

Mercury’s Transit of the Sun on This Week @NASA

James Webb Space Telescope Montage

Murmansk, Russia | Earth | Satellite

NASA's Space to Ground: Release The Dragon | 05/13/2016

"Sunrise bursting on the scene followed by beautiful ocean sun glint. We get 16 of these every day!" | U.S. Astronaut Jeff Williams | International Space Station

Good Morning! Sunrise bursting on the scene followed by beautiful ocean sun glint. We get 16 of these every day!https://t.co/UKanwP0Bv8

— Jeff Williams (@Astro_Jeff) May 13, 2016

Coming Soon from Space X: Falcon Heavy and Dragon

James Webb Space Telescope Mirror Rollover Timelapse | NASA

Timelapse Tilting of Webb Telescope's Primary Mirror | NASA

Comet C/2013 X1 (PANSTARRS)

Montreal, Quebec, Canada | International Space Station

Vela Ring Galaxy: A Cosmic Hit and Run | European Southern Observatory

A spiral snowflake | Hubble Space Telescope

Nuclear Thermal Propulsion (NTP): Deep Space Exploration | NASA

Smoke from Canadian Wildfires Trapped in Clouds | NASA Aqua Satellite

Solar Transit of Mercury 2016

NASA's Solar Observatory Captures Mercury Transit Timelapse

Full Mercury Solar Transit 2016: For 7.5 hrs today, Mercury was visible as a tiny black dot crossing the sun! | NASA's Solar Dynamic Observatory

#ICYMI: Here's the full #MercuryTransit. For 7.5 hrs today, Mercury was visible as a tiny black dot crossing the sunhttps://t.co/sYXWe5NufG

— NASA (@NASA) May 9, 2016

Set sail down the Belize coastline, enjoy the coral reefs along the way. | U.S. Astronaut Jeff Williams | International Space Station

Set sail down the Belize coastline, enjoy the coral reefs along the way.https://t.co/RsJjL6KobU

— Jeff Williams (@Astro_Jeff) May 7, 2016

Fantastic Belize barrier reefs, find your favorite region. Spotting coral reefs is a fun past time of mine. | U.S. Astronaut Jeff Williams | International Space Station

Fantastic Belize barrier reefs, find your favorite region. Spotting coral reefs is a fun past time of mine. pic.twitter.com/L44bucAwOo

— Jeff Williams (@Astro_Jeff) May 7, 2016

Thoughts are with all those affected by the fires—Fort McMurray, Alberta | ESA Astronaut Tim Peake | International Space Station

Thoughts are with all those affected by the fires - Fort McMurray, #Alberta pic.twitter.com/3Rav8m3Yn5

— Tim Peake (@astro_timpeake) May 6, 2016

The Great Salt Desert in eastern Iran has some incredible looking geologic structures known as salt domes. | U.S. Astronaut Jeff Williams | International Space Station

The Great Salt Desert in eastern Iran has some incredible looking geologic structures known as salt domes. pic.twitter.com/3juQcOxUGL

— Jeff Williams (@Astro_Jeff) May 4, 2016

Sunglint on lakes in Canada near Ottawa & Montreal | U.S. Astronaut & Station Commander Tim Kopra | International Space Station

Sun glint on lakes in @Canada near @ottawacity and @MTL_Ville from @Space_Station #CitiesFromSpacehttps://t.co/z1yUelR1RB

— Tim Kopra (@astro_tim) May 5, 2016