This story was updated at 10:56 a.m. EDT: Amazon.com's annual Amazon Prime Day megasale is in full swing and includes deals on telescopes and eclipse-watching gear, model rockets, space-themed home decor and toys. Here is a roundup of our favorite sale items for space lovers.
Prime Day's discounted prices will appear at different times for different items, so please note those times on the items below. Amazon does not reveal how much the item will be discounted until the assigned time. The deals are only available to people with an Amazon Prime account. Prime costs $99.00 per year, but users can try it free for 30 days. We'll update this page throughout Amazon Prime Day with more deals for space fans as we see them, so don't forget to check back with us Tuesday to see what we find! [The Best ISO-Certified Gear to See the 2017 Solar Eclipse]
Telescopes and binoculars
Celestron SkyMaster DX 8x56 binoculars: These medium-size binoculars are on sale for $144.57. That's 28% off their normal price of $200.28 on Amazon! The deal expires at 12:45 p.m. EDT (1645 GMT) or when it is 100% claimed. The Celestron SkyMaster 8x56 binoculars for both stargazing, as well as daytime outdoor activities like birding, boating or even watching your favorite sports team from the bleachers. In fact, we picked the Celestron SkyMaster 8x56 binoculars as our best pick for medium-size astronomy binoculars when we reviewed them.
The scope is a 5-inch (127 millimeters) Maksutov-Cassegrain telescope. The NexStar series is "designed to be an affordable entry level to mid-level computerized GoTo telescope," according to Celestron's product description.
"You can see details of the lunar surface, Venus and its phases, polar caps on Mars, Jupiter and its four moons, Saturn with its rings plainly visible and much more!" according to the product description.
Kidzlane Binoculars For Kids. Another option for your budding stargazer, these 8 x 21 magnification binoculars can be used for daytime and nighttime observing (but are not safe for observing the sun).
The binoculars are on sale for $14.99, 32% off its regular price of $22 on Amazon. The deal expires at about 4 p.m. EDT (2000 GMT).
Luwint 8 X 21 Kids Binoculars. This is another set of beginners' binoculars for observing night-sky objects, such as the surface of the moon. The binoculars are on sale for $12.79, which is 29% off its regular price of $17.99. The deal started at 10:45 a.m. EDT (14:45 GMT).
Other space-fan goodies
Doctor Who TARDIS 16GB USB Memory Stick Key Chain. You may not be able to travel through time and space like The Doctor, but you can carry your data in style with this awesome TARDIS 16 gigabyte USB memory stick keychain, which is on sale for $14.99 - that's 40% off the normal $24.99 price! Not only can you fill it with Doctor Who episodes, but it comes with the TARDIS' trademark blue light and a handy key chain, so you'll never lose your minature spaceship (oh, and your data, too). The deal expires at about 1:45 p.m. EDT (1745 GMT).
Rotating Universe and Star Projection Lamp. Want to bring the universe into your home? Check out this rotating-universe and star-projection lamp, which comes with multiple covers that project a cosmic landscape into your ceiling and walls. It is currently listed for $15.00 on Amazon. The deal started at 7:40 a.m. EDT (1140 GMT).
Miss out on this one? You still have a chance! There are two other versions of this lamp that will go on sale for Prime Day: this one for $14.19 (which started at 9 p.m. EDT and is already sold out) and this one at 8:09 a.m. EDT.
Sold Out: Celestron EclipSmart 10x25 Solar Binoculars. If you're planning on seeing the total solar eclipse on Aug. 21 (or just the partial solar eclipse that will be visible from a much wider area on the same day), this may be the perfect time to take advantage of a Prime Day deal on a pair of Celestron eclipse binoculars. They are currently priced at $34.95 on Amazon. The deal, for $27.26 (saving 22%), is sold out.
These binoculars come with nonremovable solar filters that meet the ISO standard set by NASA, the American Astronomical Society and two professional optometry organizations. You can use them during a partial eclipse to watch the moon progress across the face of the sun, but they can also be used at other times to observe bright prominences and sunspots.
Because the solar filters are nonremovable, these binoculars will not be useful during totality, when the sun is completely blocked by the moon (the disk of the sun is the only thing that should be visible through solar filters). But most eclipse experts recommend that you enjoy totality with the naked eye.
"Star Wars" Millennium Falcon 75105 Building Kit: Zoom through space in the incredible Millennium Falcon at a discounted price of $116 (Regular Price: $119). This intergalactic voyager comes with 1,329 pieces and includes six minifigures: Rey, Finn, Han Solo, Chewbacca, Tasu Leech a Kanjiklub Gang Member, and an adorable little BB-8. The gang comes complete with their specialized space weapons. Open up the top to see what's going on inside the spaceship, then close the doors to safely transport the crew during their Lego space adventures.
Sold Out: The Original Dueling Stomp Rocket. Challenge your friends to a rocket-launch duel with this air-powered backyard toy. Kids stomp on one of two foot pedals to launch the rockets up to 200 feet (60 meters) in the air. The game is on sale for $16.38 (22% down from its normal $21.00) and features four rockets for your space cadets to launch with their feet!
Sold Out: The Formic War Trilogy. If you or your scifi fan loved "Ender's Game," then this prequel trilogy of the First Formic War by Card and Aaron Johnston is a must grab for your summer reading. The trilogy of "Earth Unaware," "Earth Afire" and "Earth Awakens" is on sale for $14.92 (down from $18.74) until about 4 a.m. EDT Tuesday. chronicles the devastating alien war 100 years before the events of "Ender's Game."
Sold Out: Star Wars Armada: Victory-Class Star Destroyer Expansion Pack. This imperial ship is part of the "Star Wars: Armada" miniatures game. It is on sale for $18.18, down from $32.19 on Amazon. The deal started at 9. p.m. EDT tonight and is already sold out.
Sold Out:Estes 1948 Big Bertha Flying Model Rocket Kit. Model rocket fans should scoop up this Estes level 1 kit. The rocket reaches a maximum projected altitude of 500 feet (152 meters). It is on sale for $14.76. That's 25% off its normal $18.69 on Amazon.
Sold Out: Celestron NexStar 127SLT Mak Computerized Telescope. Skywatchers who have been thinking about investing in a home telescope might want to take advantage of the Prime Day discount on Celestron's NexStar 127SLT Mak Computerized Telescope. The telescope is on sale for $343.19, about 38% off its regular price of of $459 on Amazon.