10.

Our first story takes us to the border between Texas and Louisiana because that's where Hurricane Laura was expected to make landfall on Wednesday night.

Yesterday afternoon, Laura was a strong Category three hurricane as it spun through the Gulf.

It sustained wind speeds were 125 MPH, but then it got more intense, reaching Category four status as it approached the U.

S.

Gulf Coast, a Category four hurricane, carries wind speeds of at least 130 MPH.

This makes it capable of causing severe damage toe well built homes, Uprooting most of the trees where it makes landfall and fleeing them across roadways.

And that could knock out electricity for weeks or longer.

Hurricane Laura was the second storm system to strike the region this week.

Tropical Storm Marco made landfall on Monday near the mouth of the Mississippi River, but it had weakened enough beforehand that its main threat was heavy rain.

This could be worsened considerably by Hurricane Laura.

It was expected to bring more rain to areas Marco had already soaked.

Factor that in with Laura's destructive winds and very dangerous storm surge.

A rise in sea water levels blown ashore by an approaching hurricane, and the damage could be catastrophic.

Forecasters expected Laura could cause sea levels to rise 10 to 15 ft higher along the coasts of southeastern Texas and southwestern Louisiana.

The National Hurricane Center said.

Tornadoes were also possible in the region.

Mandatory evacuations were in effect in some places.

This doesn't mean that people were forced to leave their homes.

It means that if they chose to stay despite the order, rescue services wouldn't be available to them if they needed help.

US.

Gulf Coast isn't the only place to be impacted by Laura.

It hit the Caribbean while it was still a tropical storm.

Several deaths in the Dominican Republic and Haiti were blamed on this system.

Tropical systems come in all shapes and sizes.

You have tropical depressions, tropical storms, and once it is strong enough to become a hurricane, you have five categories of Category five being the strongest Thea states most frequently hit by a hurricane Florida, Louisiana and Texas.

But as much as we know about hurricanes, forecasting them is still a challenge.

Justus, We name each storm.

Each storm has its own personality like Katrina in 2005 which intensified rapidly overnight, going from a Category three to a Category five, it became the fourth most intense hurricane on record.

As of that time in the forecast track can change dramatically, like Erica in 2015 or a system that could be viewed as relatively weak like a tropical storm could end up like Tropical Storm Allison.

In 2001 the remnants of the storm stalled over Southeast Texas, dumping 35 inches of rain over Houston.

In just five days, the storm became the first non hurricane toe have its name retired, 12th trivia.

Who is NASA's first chief of astronomy?

Nancy Grace, Roman Edwin Hubble.

Carl Sagan or any jump cannon?

NASA's first chief astronomer, who is known as the mother of the Hubble telescope, was Nancy Grace Roman.

She's also the namesake of NASA's newest telescope.

The Nancy Grace Roman Space Telescope is set to launch sometime in the middle of the 20 twenties.

NASA estimates it will cost between 3.2 billion and $3.9 billion.

It's viewing area is said to be 100 times larger than the Hubble telescopes.

NASA says this will help it observe mawr of the sky in less time, and thats intended to help it hunt down rogue planets.

Didn't they make a Star Wars about this?

Scientists say rogue planets were found outside our solar system and that they don't orbit.

Stars like Earth does.

They meander through the galaxy on their own.

There are a lot of ideas about how these planets form and why they go rogue.

They're not easy to find, says they don't give off light.

And they don't give off much heat either, which makes them difficult to detect using infrared light.

NASA hopes that the Roman telescope will help scientists tracked down MAWR rogue planets.

The reason they want to do that is because they hope this will help people understand Maura about how planetary systems work.

NASA has a different space telescope set to launch next year that was named the James Webb Space Telescope.

It's cost is estimated at $10 billion.

It'll be the biggest instrument of its kind, and WEBS mission will be to study distant Galaxies back down to earth.

The city of Los Angeles, California, has a housing crisis.

It's not a new problem.

It's been around for decades.

Reasons include a low supply of available homes.

Ah, high demand for the ones that exist and the soaring costs of living in the city.

A D use accessory dwelling units could help.

They allow people to convert the garages on their property into rental units.

Not every community wants to do this, though.

A d use increase the number of people living in a given area.

This could increase congestion leading them or traffic and less parking space.

Some residents are concerned it'll make their neighborhoods less quiet.

But a D use come with a number of upsides as well.

Prior to January of 2017 it would not have been possible to turn a detached garage into ah hum.

What the laws that have changed in California, and also in a number of other areas, uh, do is let you repurpose incredibly valuable land were in a wonderful neighborhood, all the infrastructures here, the neighborhoods fully built out, and yet this particular piece of space on the lot was being used to store junk.

So in Los Angeles County, there are 290 0 detached two car garages that we could convert into a home like This way.

Build this and we don't charge the homeowner for there is no lien placed on the property.

We pay for it and we share the rental income with the homeowner.

And that rental stream, depending on the neighborhood, is between 4000 and $10,000 a year, and at the end of our least typically 15 years, we leave, and all this is still belongs to the homeowner without any cost.

We build one thing, and we do it in high volume.

It's really manufacturing, not construction.

That lets us get our costs for the units down.

So having achieved those two things, we can deliver housing at a very low price and as a result, we rent at a very low price.

And we look for tenants who work in this community and can't afford to live here there, otherwise, commuting long distances.

What I like about the program is the fact that I didn't have to do anything but a sign on the dotted line in one respect, and they came out and did all the work get all the permits.

Everything was sort of a complete project.

I know how hard some time it is to find a decent place to live in Los Angeles area.

And I just felt, you know, that I could do my part in helping with the affordable housing by having them built in the apartment in the back.

That also, you know, brings up my property value as well.

When I first started doing this, I really thought homeowners would be driven almost entirely by the economics.

One of the most gratifying things in doing this has been learning that a about a third or more of our homeowners are doing this for altruistic reasons.

They see the property.

They recognize the challenge in their community for affordable housing.

And this is a way without them having to come up with money that they can actually provide something provide housing for people in the community who served the community and who need a home.

Mhm.

Today we leave you with waves of blue.

Bioluminescence is the reason for this beautiful site took place recently in Southern California.

The blue hue is caused by chemical reactions in plankton, which produced the blue light.

The Monterey Bay Aquarium Research Institute, which posted this video says this is a pretty common phenomenon.

A study it conducted a few years ago concluded that 75% of deep sea organisms produced their own light.

Does that make them ultra Marine?

They certainly seem to SARU lean toward Producing is your Lee royal site that makes the Pacific terrific.

Beneath the Perry twinkling stars at midnight up Carla Zeus Lima High School in Lima, Ohio, knows how to get on CNN.

10.

Thank you for subscribing and leaving a comment at YouTube.

Com slash CNN yeah.