Showing posts with label space probe. Show all posts
Showing posts with label space probe. Show all posts

10 Jan 2021

Comets!

 Comets have always mystified people looking up into the night sky. When Comet Hyakutake was blazing across the night sky in 1996, I was lucky enough to be living on a farm an hour's drive north of Edmonton. For my family, the sky above our farm was PLENTY dark for comet-watching. We didn't need to be told where to look. The comet was big, and plenty bright enough to see.

image of comet Hyakutake
image by E. Kolmhofer, H. Raab; Johannes-Kepler-Observatory, Linz, Austria (http://www.sternwarte.at)


On several evenings that winter we took sleeping bags out into the yard and lay on the snow, looking as the fuzzy ball of light in the sky grew bigger till it looked as big as the full Moon. We took turns with a telescope and a pair of binoculars to get a closer look. Comet Hyakutake had a wispy tail, too, that stretched till it looked as long as the Big Dipper across the sky. That wispy, hairy-looking tail on a fuzzy ball is why we use the word "comet" to describe them. "Comet" is a way to say "hairy star" in Latin. Even the Egyptian pharaohs 4,000 years ago called comets by their word for "long hair."

Our family was not the only one looking for information about comets on the Internet. What was a comet? Where did they come from? What were they made of? We found lots of sites with information from NASA and observatories. One of the best websites was written by a Canadian observatory with a program called The Centre of the Universe. The comet moved on and faded from sight, but I was still interested.

The very next year, 1997, Comet Hale-Bopp blazed across the sky. There's a great story at this link about how it was discovered by two people on the same night, who were looking in the right direction. It was wonderful to lay out in our snowy yard again with our sleeping bags and telescope and binoculars, and once again watch an amazing comet. It felt like we could actually SEE the comet moving and its wispy tail fluttering behind it.

But it was hard to get our kids to stay outside for more than about twenty minutes. Yup, this was a mysterious and fascinating object in the night sky! But they had seen the previous amazing comet just a year ago. After half an hour, they were cold enough to want to go inside. They promised to make hot chocolate -- enough for all of us. They knew I'm a science fan and just had to lay out there for a while longer.

I'm still a science fan. I still look up into the night sky, tracking planets and comets. As well, I go to the websites for space probes that have gone through comet tails like Ulysses, or the newer ones that have visited comets, like Rosetta and its lander Philae. On Twitter, I follow messages tweeted about space probes visiting the asteroids Bennu and Ryugu. There's so much to learn about space probes! And I'm still learning where to look.


27 Jul 2020

Countdown to launch of new Mars mission!

On Thursday July 30, NASA will be launching their newest probe with a mission on Mars! There are a terrific assortment of social media activities during the countdown, and lots of free materials to find online about this probe named Perseverance. The Perseverance mission is bringing along a tiny helicopter named Integrity, which will be the first helicopter to fly on Mars, when they get there in February 2021.

Mars probe

Here's a link to the NASA website with plenty of information. You can sign up to receive a countdown to Thursday's launch, or learn about the probe's mission, or watch the launch in real time and many videos at your leisure. Whether you want to learn a lot or just have a good time, this is a science website with lots of content.
Fans of science have an amazing assortment of learning materials and fun stuff available here. If you're more interested in comets or stars than you are in Mars, keep looking through NASA's website at http://www.nasa.gov where you can find links to pictures, videos, articles, and all sorts of information.
If you're on Twitter, check out the hashtag #CountdownToMars for updates all week.

19 Jul 2020

Virtual Tour of an Asteroid

by Paula Johanson
When I was a child, I watched every Apollo launch. Each of the moon landings was celebrated in my home. If (like me) you've ever wished you could be an astronaut, there are lots of things to do with that dream. One way I connect with my inner astronaut is to go to this NASA website, Ryugu Trek.

Ryugu is an asteroid that has been visited by a space probe called Hayabusa2.  On the website Ryugu Trek, you can use your computer to look all around this rocky asteroid. Thousands of photographs have been worked together to create a virtual tour. You can change the image settings like a video game, to see what you'd see flying your own space probe over and around the surface of Ryugu.

Take a little time to check out this website! Click on this link to try the various tours and downloads available. It makes me feel like I understand more about the scientists studying the images of this stony little member of our solar system.