Connect with us

Science

Full buck moon with penumbral lunar eclipse visible in Saskatchewan this weekend – Humboldt Journal

Published

on


Saskatchewan residents will have the opportunity to view a magnificent full Buck Moon this July in addition to a lunar eclipse. 

Named after the time of year when young bucks begin to grow new antlers from their foreheads, the July full moon marks a time of renewal. With this in mind, the July moon, like the other months of the year, has many names.

article continues below

For example, the full moon is also known as the “Thunder Moon.” According to the Old Farmer’s Almanac, the moon was given that name, “because thunderstorms are so frequent during this month.” They note that Native peoples would give distinctive names to each reoccurring full moon to mark the change of seasons. As such, many of these names arose when Native Americans first interacted with colonialists.

The moon also has number of Native American names which, translated directly into English, mean the “Ripe Corn Moon” by the Cherokee, “Middle of Summer Moon” by the Ponca, and “Moon When Limbs of Trees Are Broken by Fruit” by the Zuni.

The full Buck Moon will be at its fullest on July 4.

As the full moon increases in fullness, Humboldt residents will also be able to view a ‘penumbral lunar eclipse’. Timeanddate.com explains how it is set to begin July 4 at 9:07 p.m. but that it won’t be directly visible from Humboldt at that time.

At 9:24 p.m., “it will be rising but the the combination of a very low moon and the total eclipse phase will make the moon so dim that it will be extremely difficult to view until moon gets higher in the sky or the total phase ends.” 

The moon will be closest to the centre of shadow at 10:29 p.m. (-0.65 Magnitude). It will end at 11:52 p.m.

During this penumbral lunar eclipse, the Earth’s main shadow does not cover the Moon.

Stargazers should opt to travel as far away from city lights as possible in order to avoid light pollution that will obscure the clarity of heavenly bodies. While this works best in more remote places, anywhere that has a higher elevation will also provide more ideal viewing conditions.

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Annual Perseid meteor shower peaks this week: How you can catch some 'shooting stars' – CBC.ca

Published

on


Looking for a fun, physical-distancing activity in the coming days? The best meteor shower of the year is upon us. 

The Perseid meteor shower is one of the best summertime treats. Under optimal conditions — clear, moonless dark skies — at its peak, the shower can produce up to 100 meteors an hour.

The meteor shower runs from July 17 to Aug. 26, with the peak occurring this year on the night of Aug. 11–12.

Meteor showers occur when Earth, as it orbits the sun, plows through debris left over from a passing comet or asteroid. These small, grain-sized pieces of debris burn up in our atmosphere, produce beautiful streaks of light, often referred to as “shooting stars.”

In this case, Earth is passing through a stream left from comet 109P/Swift-Tuttle. 

Try out this interactive map showing how Earth passes through the meteor shower:

When and where to watch

While last year’s shower was hampered by an almost full moon, the good news is that this year, the moon will only be 44 per cent illuminated and rise after midnight.

The biggest key to enjoying a meteor shower is getting away from light sources. That means finding a good, dark-sky location, such as a park or a beach. Also, stay away from your cellphone. As it takes our eyes some time to adjust to the dark, the phone’s bright light will make it more difficult to do so. Typically, it can take 30 minutes or longer for your eyes to adjust.

The greatest thing about meteor showers is that everyone can enjoy them. There’s no need for a telescope or even binoculars. All you need to do is grab a blanket or two, find a good location and look up.

A Perseid meteor in 2014 streaks over Starfest, a star party held annually in southwestern Ontario each August. This year, the Perseid meteor shower will peak on the night of Aug. 11-12. (Submitted by Malcolm Park)

See some ‘Earth-grazers’

Meteor showers are named after the constellation from which the meteors seem to originate, called the radiant. In this case, the radiant is in the constellation Perseus, hence the name.

The constellation rises in the northern sky at about 9:30 p.m. local time and continues to rise in the northeast. But you don’t have to look exactly in that direction to see the meteors. You can simply look up. 

In fact, if you’re doing your meteor-gazing at that time of night, the meteors will leave much longer trains — or streaks — in the sky as they skim the upper atmosphere. These are called “Earth-grazers” and can be seen low in the east moving from north to south. Though earlier in the night isn’t the most active time for meteors, the ones that you will see will likely be more spectacular as a result.

And you don’t have to look straight up because more meteors will be seen at somewhat lower elevations.

As the constellation rises higher in the sky, you will likely see more meteors. Of course, as the constellation rises, so, too, does the moon. That means that only the brightest meteors will be visible. The good thing is, the Perseids do tend to put on a show with some brilliant meteors seen even over urban areas. 

Now, if the weather doesn’t look like it’ll hold up, you can try watching on either side of the peak night, on Monday or Wednesday when meteor activity will still be high.

And, if you’re willing to go the distance, you can pull an all-nighter or wake up very early in the morning, as the best time to see meteors will be in the few hours before sunrise on Wednesday.

Let’s block ads! (Why?)



Source link

Continue Reading

Science

NASA's Rover Is Taking a Tree-Like Device That Converts CO2 Into Oxygen to Mars – ScienceAlert

Published

on


NASA’s Perseverance Mars rover launched from Cape Canaveral, Florida, on 30 July, carrying a host of cutting-edge technology including high-definition video equipment and the first interplanetary helicopter.

Many of the tools are designed as experimental steps toward human exploration of the red planet. Crucially, Perseverance is equipped with a device called the Mars Oxygen In-Situ Resource Utilization Experiment, or MOXIE: an attempt to produce oxygen on a planet where it makes up less than 0.2 percent of the atmosphere.

Oxygen is a cumbersome payload on space missions. It takes up a lot of room, and it’s very unlikely that astronauts could bring enough of it to Mars for humans to breathe there, let alone to fuel spaceships for the long journey home.

That’s the problem MOXIE is looking to solve. The car-battery-sized robot is a roughly 1 percent scale model of the device scientists hope to one day send to Mars, perhaps in the 2030s.

Like a tree, MOXIE works by taking in carbon dioxide, though it’s designed specifically for the thin Martian atmosphere. It then electrochemically splits the molecules into oxygen and carbon monoxide, and combines the oxygen molecules into O2.

It analyses the O2 for purity, shooting for about 99.6 percent O2. Then it releases both the breathable oxygen and the carbon monoxide back into the planet’s atmosphere. Future scaled-up devices, however, would store the oxygen produced in tanks for eventual use by humans and rockets.

A breakdown of the components inside the MOXIE oxygen generator. (NASA/Wikimedia Commons)

The toxicity of the carbon monoxide produced isn’t a worry, according to Michael Hecht, a principal investigator for MOXIE. The gas reenters the Martian atmosphere but won’t alter it very much.

“If you release the carbon monoxide into the Mars atmosphere, eventually it will combine with a very small amount of residual oxygen that’s there and turn back into carbon dioxide,” Hecht previously told Business Insider.

For that reason, the carbon monoxide also wouldn’t hinder a potential biosphere on Mars – a closed, engineered environment where Earthly life could thrive.

Because MOXIE is a small proof-of-concept experiment, it won’t produce much oxygen – if all goes well, it should be producing about 10 grams per hour, which is roughly the amount of oxygen in 1.2 cubic feet of Earth air. For context, humans need about 19 cubic feet of air per day.

MOXIE will test its capabilities by producing oxygen in one-hour increments intermittently throughout the duration of Perseverance’s mission, according to NASA. The device should start working soon after the rover lands on 18 February 2021.

This article was originally published by Business Insider.

More from Business Insider:

Let’s block ads! (Why?)



Source link

Continue Reading

Science

NASA drops racially charged nicknames of celestial bodies – CTV News

Published

on


Grocery store items, pro sports teams, and country music bands have all removed racially insensitive names.

Now, NASA is adding celestial bodies to the list that includes Aunt Jemima, the Washington Football Team and hitmakers The Chicks and Lady A.

“Eskimo Nebula” and “Siamese Twins Galaxy” are out, for example.

“Nicknames are often more approachable and public-friendly than official names for cosmic objects, such as Barnard 33, whose nickname ‘the Horsehead Nebula’ invokes its appearance,” NASA said in a release this week. “But often seemingly innocuous nicknames can be harmful and detract from the science.”

NASA is examining its use of phrases for planets, galaxies and other cosmic objects “as part of its commitment to diversity, equity, and inclusion.”

The space agency says it “will use only the official, International Astronomical Union designations in cases where nicknames are inappropriate.”

Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate in Washington, DC, said, “Science is for everyone, and every facet of our work needs to reflect that value.”

In June, Dreyer’s Grand Ice Cream said it was dropping the brand “Eskimo Pie” after a century. The word is commonly used in Alaska to refer to Inuit and Yupik people, according to the Alaska Native Language Center at the University of Alaska. “This name is considered derogatory in many other places because it was given by non-Inuit people and was said to mean ‘eater of raw meat.'” People of Canada and Greenland prefer other names.

“Siamese twins” is an antiquated expression for conjoined twins, based on brothers from Siam (now Thailand) who were used as sideshow freaks in the 19th century.

The renaming trend followed worldwide protests against racism and police brutality after George Floyd was killed by Minneapolis police.

Let’s block ads! (Why?)



Source link

Continue Reading

Trending