Under $500

The universe has always been mysterious and strange to us, but in fact it may be stranger than we can ever fathom. In this episode of How Do You...

Features Wireless rain gauge with digital display 9-day precipitation history and rain alarm Time (12 / 24h) Date with language selection for the...

Features Detect coins, jewelry and other metal objects up to 6 inches below the surface LCD display and audio tones alert searchers to presence ...

Features Dark-Sky filter Contrast increase in aurora & deep-sky photography Reduction of stray light from street lights, for example Wide-ang...

In the second part of Dr. Barth's discussion on dark matter, he touches on why did galaxies form, the missing matter problem, and the Great Attr...

In this episode, Dr. Barth discusses the the difference between persuading someone to accept your opinion in an argument and arguing from eviden...

Features High quality Explore Scientific O-III filter Let only the oxygen emission lines "through" Absorbs all other emission lines Absorbs almo...

Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

Features High quality Explore Scientific O-III filter Let only the oxygen emission lines "through" Absorbs all other emission lines Absorbs almo...

Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

The creation of Earth's Moon is an age old question. There are pre-Apollo mission theories, of which three of the most popular ones will be d...

Features Trekking poles provide stability on uncertain terrains, enhance calorie burn and relieve strain by encouraging good posture while walkin...

It's estimated that we will colonize Mars by 2050. The challenges to make it happen are daunting.  Dr. Barth touches on some of the problems tha...

Features Tuya® IoT ready that works with Tuya® Smart & Smart Life Apps via Wi-Fi Able to trigger other Tuya® compatible IoT devices Multi-cha...

Features Sleek profile with top-class metallic charcoal grey finish Slim design with 4 standing angles, ideal for Desktop, bedside or wall Splend...

Features HD Camera Waterproof Case Flat Adhesive Mounts Handle Bar/Pole Mount Frame Housing Mount Velcro Straps Long Thumb Screw Quick Release Bu...

Features 4K HD Camera Waterproof Case Flat Adhesive Mounts Handle Bar/Pole Mount Frame Housing Mount Straps Long Thumb Screw Quick Release Buckle...

Description Around the World or Around the Block - Bresser Everest Binoculars are the Perfect Companion! Offering an ideal combination of superior...