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Federal authorities made a grim and unexpected discovery in an unattended bag last week at a Detroit airport.

Inside, the bag held a young dolphin’s skull, the US Customs and Border Protection said in a news release Friday.

The bag was separated from its owners while traveling and when it arrived in the US, a routine screening at the Detroit Metropolitan Airport revealed what appeared to be a skull-shaped object, CBP said in the release.

“Upon further examination by CBP and US Fish and Wildlife Service officials, it was determined the skull was from a young dolphin,” the release said.

The skull was turned over to US Fish and Wildlife Service inspectors for further investigation.

“The possession of wildlife items, especially those of protected animals is prohibited,” Robert Larkin, the area port director, said in a statement. “We take wildlife smuggling seriously and work closely with our federal partners at the US Fish and Wildlife Service to protect wildlife and their habitats.”

There are restrictions and requirements around importing and exporting certain fish, wildlife and products that come from them – and it’s not the first time US authorities make a similar seizure.

In December, CBP officers seized zebra and giraffe bones from a woman at Washington’s Dulles International Airport. The woman, who was traveling from Kenya, had kept the bones as souvenirs, authorities said at the time.

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Look in the night sky this weekend for February’s full moon, where it can be glimpsed around the world.

It will reach peak illumination around 1:29 p.m. ET Sunday, but the moon will appear full from early Saturday morning through early Tuesday morning, according to NASA.

The full moon is considered a micromoon because it appears slightly smaller than normal in our sky due to its distant location in orbit around Earth right now, according to EarthSky. January’s full moon was also a micromoon.

The moon will still be very bright even though it’s 252,171 miles (405,830 kilometers) away.

It is known as the snow moon, according to the Old Farmer’s Almanac, since February is associated with more snowfall in North America. The Arapaho tribe’s name for February’s full moon means “frost sparkling in the sun,” according to a guide compiled at Western Washington University.

Wintry-sounding names for February’s full moon vary across other Native American tribes. The Comanche call it sleet moon, while the Lakota know it as cannapopa wi, which means “when trees crack because of cold.” The month was also associated with hunger and a lack of food sources, hence the Kalapuya tribe’s moon name atchiulartadsh, or “out of food.”

Europeans have referred to February’s full moon as the Candles moon, connected to Candlemas on February 2, or the Feast of the Presentation of Jesus Christ. The moon also occurs with the end of Lunar New Year celebrations, which is the Lantern Festival.

The full moon falls in the middle of the month of Shevat and on the holiday Tu BiShvat on the Hebrew calendar, or “New Year of the Trees,” which is celebrated by planting trees and raising ecological awareness.

Here are the rest of 2023’s top sky events, so you can have your binoculars and telescope ready.

Most years, there are 12 full moons — one for each month. But in 2023, there will be 13 full moons, with two in August.

The second full moon in one month is known as a blue moon, like the phrase “once in a blue moon,” according to NASA. Typically, full moons occur every 29 days. But most months in our calendar last 30 or 31 days, so the months and moon phases don’t always align, resulting in a blue moon about every 2½ years.

The two full moons in August can also be considered supermoons, according to EarthSky. Definitions of a supermoon vary, but the term generally denotes a full moon that is brighter and closer to Earth than normal and thus appears larger in the night sky.

Some astronomers say the phenomenon occurs when the moon is within 90% of perigee — its closest approach to Earth in orbit. By that definition, the full moon for July will also be considered a supermoon event, according to EarthSky.

Here is the list of remaining full moons for 2023, according to the Farmer’s Almanac:

These are the popularized names associated with the monthly full moons, but each one carries its own significance across Native American tribes (with many also referred to by differing names).

Mark your calendar with the peak dates of meteor showers to watch in 2023:

If you live in an urban area, you may want to drive to a place that isn’t full of bright city lights to view the showers. If you’re able to find an area unaffected by light pollution, meteors could be visible every couple of minutes from late evening until dawn, depending on which part of the world you’re in.

Find an open area with a wide view of the sky. Make sure you have a chair or blanket so you can look straight up. And give your eyes about 20 to 30 minutes to adjust to the darkness — without looking at your phone — so the meteors will be easier to spot.

There will be two solar eclipses and two lunar eclipses in 2023.

A total solar eclipse will occur on April 20, visible to those in Australia, New Zealand, Southeast Asia and Antarctica. This kind of event occurs when the moon moves between the sun and Earth, blocking out the sun.

And for some sky watchers in Indonesia, parts of Australia and Papua New Guinea, it will be a hybrid solar eclipse. The curvature of Earth’s surface can cause some eclipses to shift between total and annular as the moon’s shadow moves across the globe, according to NASA.

Like a total solar eclipse, the moon passes between the sun and Earth during an annular eclipse — but it occurs when the moon is at or near its farthest point from Earth, according to NASA. This causes the moon to appear smaller than the sun, so it doesn’t completely block out our star and creates a glowing ring around the moon.

A Western Hemisphere-sweeping annular solar eclipse will occur on October 14 and be visible across the Americas.

Be sure to wear proper eclipse glasses to view solar eclipses safely as the sun’s light can be damaging to the eyes.

Meanwhile, a lunar eclipse can occur only during a full moon when the sun, Earth and moon align and the moon passes into Earth’s shadow. When this occurs, Earth casts two shadows on the moon during the eclipse. The partial outer shadow is called the penumbra; the full, dark shadow is the umbra.

When the full moon moves into Earth’s shadow, it darkens, but it won’t disappear. Instead, sunlight passing through Earth’s atmosphere lights the moon in a dramatic fashion, turning it red — which is why the event is often referred to as a “blood moon.”

Depending on the weather conditions in your area, it may be a rusty or brick-colored red. This happens because blue light undergoes stronger atmospheric scattering, so red light will be the most dominant color highlighted as sunlight passes through the atmosphere and casts it on the moon.

A penumbral lunar eclipse will occur on May 5 for those in Africa, Asia and Australia. This less dramatic version of a lunar eclipse happens when the moon moves through the penumbra, or the faint, outer part of Earth’s shadow.

A partial lunar eclipse of the hunter’s moon on October 28 will be visible to those in Europe, Asia, Australia, Africa, parts of North America and much of South America. Partial eclipses occur when the sun, Earth and moon don’t completely align, so only part of the moon passes into shadow.

When US President Joe Biden learned a suspected Chinese spy balloon was drifting through the stratosphere 60,000 feet above Montana, his first inclination was to take it down.

By then, however, it was both too early and too late. After flying over swaths of sparsely populated land, it was now projected to keep drifting over American cities and towns. The debris from the balloon could endanger lives on the ground, his top military brass told him.

Its arrival had gone unnoticed by the public as it floated eastward over Alaska – where it was first detected by North American Aerospace Defense Command on January 28 – toward Canada. NORAD continued to track and assess the balloon’s path and activities, but military officials assigned little importance to the intrusion into American airspace, having often witnessed Chinese spy balloons slip into the skies above the United States. At the time, the balloon was not assessed to be an intelligence risk or physical threat, officials say.

This time, however, the balloon kept going: high over Alaska, into Canada and back toward the US, attracting little attention from anyone looking up from the ground.

It would take seven days from when the balloon first entered US airspace before an F-22 fighter jet fired a heat-seeking missile into the balloon on the opposite end of the country, sending its equipment and machinery tumbling into the Atlantic Ocean.

The balloon’s week-long American journey, from the remote Aleutian Islands to the Carolina coast, left a wake of shattered diplomacy, furious reprisals from Biden’s political rivals and a preview of a new era of escalating military strain between the world’s two largest economies.

It’s also raised questions about why it wasn’t shot down sooner and what information, if any, it scooped up along its path.

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