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Are you ready for the total solar eclipse on April 8? Click to shop all solar gear!
Are you ready for the total solar eclipse on April 8? Click to shop all solar gear!

Under $25

  • On the night of 1612 December 27/28, Galileo sketched the positions of Jupiter’s moons, and included a background "star" which was identified in 2009 to be the planet Neptune.
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    Explore Alliance Presents: How Do You KNOW? – Episode #52: ''Who Discovered Neptune?"

    Explore Scientific LLC

    From its discovery in 1846 until Clyde Tombaugh's discovery of Pluto in 1930, Neptune was the farthest-known planet. Now with the controversial re...

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  • Henry Cavendish conducted his gravity experiment in 1798, seventy-one years after the death of Isaac Newton.
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    Explore Alliance Presents: How Do You KNOW? – Episode #53: ''Finding the Value of G"

    Explore Scientific LLC

    Gravity is the weakest of the four fundamental forces, it causes causes mutual attraction between all things with mass or energy. It is  approximat...

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    Explore Alliance Presents: How Do You KNOW? – Episode #54: "Exploring Valles Marineris"

    Explore Scientific LLC

     The European Space Agency’s Exobiology on Mars (ExoMars) program has included a series of missions designed to study the potential for...

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    Explore Alliance Presents: How Do You KNOW? - Episode 56: Anthropic Cosmological Principle

    Explore Scientific LLC

    In cosmology, the anthropic principle involves any structure of the universe, the values of the constants of nature, or the laws of nature that ha...

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    Explore Alliance Presents: How Do You KNOW? - Episode 58: Black Hole Collisions

    Explore Scientific LLC

    Have you ever wondered how hard it can be to merge two black holes? Well it actually is a lot harder than you think. You would think that because t...

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    Explore Alliance Presents: How Do You KNOW? - Episode 60: Where's the proof that Einstein's Right?

    Explore Scientific LLC

    We hear the phrase "You can't prove that!" all the time. But is it a valid criticism? On this episode of How Do You Know Dr Daniel Barth will defi...

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    Giant Binoculars Finder Adapter

    Explore Scientific

    Description This device allows you to attach the Explore Scientific Hybrid 2N1 finder base to our Giant Binocular Series, allowing easy pointing/a...

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  • Make a zero cost purchase and download the high-resolution 300dpi Version of the Mars Albedo Map by Carlos Hernandez
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    Mars Albedo Map by Carlos Hernandez

    Explore Scientific

    A Map of the Classical Albedo Features of Mars Produced by Carlos Hernandez. Not all features noted on the map are visible to an observer at any...

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  • Explore One 100x-1200x Microscope Set - White
    Explore One 100x-1200x Microscope Set - Blue
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    Explore One 100x-1200x Microscope Set

    Explore One

    Features Three objective lenses mounted on a rotating turret provide magnifications of 100x, 400x and 1200x. Includes Prepared and blank slides, ...

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    Explore Scientific 12V Battery Power Supply for Dobsonians - BPS-12VDC-AA

    Explore Scientific

    AA Battery Holder Powers Truss-Tube Dobsonian Fans   The AA battery holders for the Explore Scientific truss-tube Dobsonian telescopes with fans us...

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  • Explore Scientific Wall Clock
    Explore Scientific Wall Clock
    Original price $ 24.97 - Original price $ 24.97
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    Explore Scientific Wall Clock

    Explore Scientific

    Features German silent movement and components, high sensitivity and precision Radio-controlled time via WWVB in the United States, Canada and Me...

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  • Vixen Telescope Cigarette-Lighter Plug Cord – SX
    Original price $ 15.99 - Original price $ 15.99
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    Vixen Telescope Cigarette-Lighter Plug Cord – SX

    Vixen

    Description For cigarette socket compatible power supply It can be used with SX, SX2, SXD2, SXP, AXD mounts, DD-3 controller, STAR BOOK Type S con...

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  • Vixen Telescope Extension Tube R200SS
    Original price $ 6.99 - Original price $ 6.99
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    Vixen Telescope Extension Tube R200SS

    Vixen

    Description Extension tube This Extension tube converts 42mm T-thread to 43mm thread. Specs Thread Diameter 42mmT (p=0.75) 43mm (p=1) O...

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    Original price $ 6.99 - Original price $ 6.99
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  • Vixen Telescope Cigarette-Lighter Plug Cord – Center-Minus
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    Vixen Telescope Cigarette-Lighter Plug Cord – Center-Minus

    Vixen

    Description For cigarette socket compatible power supply It can be used with DD-2 controller, dew heater 2 and color CCD camera C0014-3M. Spec ...

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  • Vixen Telescope T-Ring Four Thirds
    Original price $ 23.99 - Original price $ 23.99
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    Vixen Telescope T-Ring Four Thirds

    Vixen

    Description Connects Telescope, Spotting Scope with DSLR Camera The T Ring is designed to be used for Astrophotography in conjunction with other ...

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  • Vixen Telescope T-Ring Konica α, Minolta α,  Sony α
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    Vixen Telescope T-Ring Konica α, Minolta α, Sony α

    Vixen

    Description Connects Telescope, Spotting Scope with DSLR Camera The T Ring is designed to be used for Astrophotography in conjunction with other ...

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    Original price $ 18.99 - Original price $ 18.99
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  • Vixen Telescope T-Ring Minolta MF
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    Vixen Telescope T-Ring Minolta MF

    Vixen

    Description Connects Telescope, Spotting Scope with DSLR Camera The T Ring is designed to be used for Astrophotography in conjunction with other ...

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    Group Tour Option for the 2022 Mount Wilson Observatory Star Party and The Huntington Library

    Explore Scientific LLC

    For *participants of the 2022 Mount Wilson Observatory Star Party and The Huntington Library, there is an Estate Group Tour option for a 90-minut...

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    Alpen Optics APP-3500 Rechargeable Battery Pack

    Alpen

    Features Exchangeable battery for ALPEN models APEX Super fast change thanks to quick-release flap on APEX 6 hours battery life (at temperature r...

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    Alpen Optics Charger for APP-3500 Battery Pack

    Alpen

    Features Battery charger for ALPEN APP-3500 battery LED indicator for charging status Description Replaceable power supply for the ALPEN APEX...

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    Original price $ 9.99 - Original price $ 9.99
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    Timing the Eclipse

    Explore Scientific

    This free document prepared by Dr. Daniel Barth outlines an eclipse observation activity focusing on safety and proper methods. It encourages using...

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    Observing the Solar Eclipse with Binoculars

    Explore Scientific LLC

    This free document prepared by Dr. Daniel Barth provides guidance for safely observing a solar eclipse using binoculars. Emphasizing safety as a p...

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    Make an Eclipse Flip Book

    Explore Scientific LLC

    This free document prepared by Dr. Daniel Barth introduces an Eclipse Flip Book activity, emphasizing the importance of safety when observing an ec...

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    Make an Eclipse Simulator

    Explore Scientific

    This free document prepared by Dr. Daniel Barth outlines an Eclipse Simulator activity, stressing the importance of safety during solar eclipse obs...

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