References

Use the best binoculars to hunt for wildlife, stargaze, track athletes or spot planes — find something to suit any budget, interest or experience level.

The best binoculars for kids need to be lightweight, compact and easy to hold and use — we've rounded up our favorite models for kids young and old.

BUYING GUIDE The best star projectors transform your home into a mesmerizing, other-worldly space — whether you want to sleep under the stars or learn more about astronomy.

reference Centrifugal and centripetal are two closely related forces that describe circular motion, but the meanings are often mixed up.

Buying Guide These are the best electric toothbrushes for kids, from Oral B Kids and Philips Sonicare for Kids to AutoBrush Sonic Pro.

BUYING GUIDE These are the best treadmills you can buy in every category, from NordicTrack x22i and Mobvoi Home Treadmill to Peloton Tread.

The best binoculars for stargazing need high magnification and large, light-hungry objective lenses — we've rounded up the best models on the market.

These are the best Garmin watches you can buy in every category, from Fenix 7 and Forerunner 265 to Venu 2 Plus.

Buying Guide These are the best rowing machines you can buy in every category, from Concept2 RowErg and Ergatta Rower to Hydrow Wave.

BUYING GUIDE The best astrophotography cameras need to have outstanding low-light performance and feel like an extension of your hand in the dark — here are our favorites.

BUYING GUIDE The best cameras for wildlife photography have impeccably accurate autofocus, a fast burst rate and sharp, detailed images — we've rounded up the best models.

The best telescopes give you a closer look at the cosmos like never before — we've rounded up the best telescopes for all experience levels and budgets.

BUYING GUIDE These are the best Fitbit watches you can buy in every category, from Charge 5 and Inspire 3 to Sense 2.

These are the best budget fitness trackers you can buy in every category, from Fitbit Inspire 3 and Garmin Vivosmart 5 to Amazfit Bip 3 Pro.

The woolly mammoth, a cousin of today's elephants, died out about 10,000 years ago. It may be possible to bring them back by cloning, but should we?

Buying Guide These are the best fitness trackers you can buy in every category, from Apple Watch Series 8 and Garmin Fenix 7 to Amazfit Balance.

Discover interesting facts about how evolution works, the different patterns that can emerge from evolution, how quickly organisms can evolve, and whether evolution is a random or ordered process

Buying Guide These are the best humidifiers you can buy in every category, from Dyson AM10 and Levoit LV600HH to HoMedics TotalComfort Deluxe.

BUYING GUIDE These are the best dehumidifiers you can buy in every category, from Honeywell TP50WK to GE APER50LZ.

BUYING GUIDE From Samsung, Bose and Beats, here are the best running headphones ― as tested by Live Science.