From stellar lunar rainbows, or moonbows, created by the light of the moon, to wonders that are not so natural, like the petroglyphs left behind by our past ancestors, to intricate roadways constructed by the Roman Empire — that we even still use today — to leaving a campsite safely and properly extinguishing a campfire. These are Discover's tips that highlight the best ways to stay curious about the science around you.

We'll be sharing these science tips each week on wildlife, adventurous locations, and tools that can help you interact with your surroundings. What do you want to know more about? Let us know at editorial@discovermagazine.com.

1. Where To See Lunar Rainbows

Seeing a colorful rainbow break through the clouds after a rainstorm is always a magical sight, but seeing the rare nighttime equivalent is even more fascinating. In certain parts of the world, when a full moon rises and shines through the mist rising from a waterfall, it can create an effect known as a moonbow, or a lunar rainbow.

Though moonlight can be faint, it creates a ghostly white arch that is visible to the naked eye. If you’re able to capture the moonbow with a camera, however, you may see some of the colors hidden within it.

The best places to catch a glimpse are:

• Cumberland Falls State Resort Park in Corbin, Kentucky:As the most famous spot to see the moonbow in the Western Hemisphere, the moonbow appears fairly reliably, and there is even an official viewing schedule.
• Yosemite National Park in California:During the early spring and summer, moonbows have been known to appear at the base of Lower Yosemite Falls. The park also has a prediction calendar you can view.
• Victoria Falls, Zambia-Zimbabwe, Africa:Victoria Falls is one of the most famous waterfalls in the world and one of the only places where moonbows consistently appear year-round. The best time to see one is from June to August, and you can take an official lunar rainbow tour.

Tips for viewing:

• Go to the waterfalls during the 2- to 3-day window before, during, and after the full moon.
• Check the weather in advance to make sure the skies will be clear that night.
• Limit the use of flashlights and flash photography, as it can ruin the effect of the moonbow.
• For stunning images, it’s best to use a wide-angle lens, a tripod, and a remote shutter.
• Always check your surroundings and stay safe when traveling to these areas at night.

Read More: Yosemite’s Rare Firefall Returns This February — but the Fiery Glow Will Last Only Minutes

2. Where To Find Petroglyphs While Traveling

Petroglyphs are ancient images carved directly into rock using stone tools, and they can be found on every inhabited continent. Visiting them is one of the best ways to connect with thousands of years of human history — but they are also incredibly fragile.

If you’re traveling, some of the world’s best places to see petroglyphs include:

• Coso Rock Art District, Eastern California:home to an estimated 100,000 carvings and considered the greatest concentration of petroglyphs in the Western Hemisphere.
• Petroglyphs Provincial Park, Ontario, Canada:the largest known concentration of Indigenous petroglyphs in Canada.
• Valcamonica, Northern Italy:eight separate reserves and parks dedicated to as many as 300,000 petroglyphs.
• Checta, Canta Lima, Peru:450 carved images including humans, celestial bodies, and abstract drawings yet to be identified.

When you visit a petroglyph site, remember that these sites are non-renewable cultural treasures. Never touch the carvings, as the oil from your hands can permanently darken the rock and obscure the images. Always stay on marked trails, avoid climbing on boulders or moving rocks, and never trace or make rubbings of the artwork.

Many petroglyph sites are in hot, exposed landscapes, so bring plenty of water, wear sun protection, and take your time. The best souvenir is a photograph and the knowledge that you’ve helped preserve these remarkable windows into the past for future generations.

Read More: 6,000-Year-Old Rock Murals in Texas and Mexico Reveal Ancient Beliefs on the Cosmos

3. Take a Virtual Tour of Roman Roads

The Roman Empire spanned multiple continents and covered thousands of miles. To stay well connected, the Romans built an intricate road system that spanned the empire. Some major highways and modern roads still follow some of these routes today.

And if you’re curious, a database called Itiner-e has a digital atlas that pinpoints the locations of the Roman Empire's roads and offers other information about them. Dubbed the “Google Maps for the Roman Empire,” Itiner-e allows you to download route data and view the roads on a standard digital map, topographical map, or satellite imagery.

Historians gather and fact-check the information in the atlas, and while there is still more information to collect and roads to add to the map, you could already plan your own itinerary and see how fast ancient people traveled using certain modes of transportation, including:

• Walking (about 2.5 mph)
• Ox Cart (about 1.25 mph)
• Pack Animal (about 2.80 mph)
• Horse Courier (about 3.73 mph)

4. How To Safely Leave a Campsite and Put Out a Fire

Leaving a campsite safely takes a little more than just packing up your tent and gear. Food and garbage can attract wildlife, and a fire that looks like it has gone out may still be hot enough to start burning again.

Before heading home, leave yourself enough time to put out the fire completely and check that you haven’t left anything behind.

You’ll need plenty of water and a shovel to extinguish the fire completely. Follow the “drown, stir, drown, and feel” method:

To extinguish the fire:

• Drown:Pour plenty of water across the entire fire, including the logs, coals, ashes, and outer edges of the fire ring.
• Stir:Mix the wet ashes and embers with a shovel or stick. Break apart burned wood to expose any areas that are still hot.
• Drown again:Add more water and continue stirring until there is no smoke, steam, or hissing.
• Feel:Hold the back of your hand several inches above different parts of the ashes without touching them. If you detect any warmth, add more water and repeat the process.

Never bury warm coals or cover them with dirt. The fire ring should be completely cool before you leave.

Once the fire is out, check the rest of the campsite:

• Pack up food scraps, wrappers, cans, bottles, cigarette butts, and other garbage.
• Look beneath tents, tables, and chairs for smaller items.
• Remove leftover food or scented products that could attract wildlife.
• Make sure portable stoves and grills are turned off and cool.

Before leaving, walk around the site one more time. There should be no remaining heat, smoke, food, or litter.

Read More: Ancient Romans Were Some of The First Obnoxious Tourists