Traci Mumford

One executive at a mutual fund said many investors are less scared of SpaceX flopping than they are on missing out on a potential windfall.

And a former executive at Bank of America said, quote, there's a lot of enthusiasm for the deal, in part because people believe that there is enthusiasm.

The huge IPO could help make Musk, already the world's richest man, the first ever trillionaire.

And SpaceX is expected to use the money it raises to fund some wildly ambitious projects, including Musk's goal of putting data centers into orbit and sending humans to Mars.

My colleague Harry Stevens is covering the controversial race to start collecting valuable metals from the depths of the ocean, a place that no light reaches and scientists have barely explored.

There are potentially billions of tons of metals like nickel and cobalt down there, which are crucial for batteries and other technology.

The metals have accumulated on bits of rock or shell or even shark teeth sitting on the seabed, creating so-called nodules that are about the size of a fist.

And Harry says at least one company has already been pioneering a process for gathering them.

Harry says right now the Trump administration is on the verge of greenlighting this kind of mining in international waters.

If the U.S.

issues those permits, it will be the first country in the world to do so, potentially setting off a kind of race to the bottom of the sea.

And finally, if you are someone who feels nothing short of attacked by nature every year when allergy season begins, I'm here to tell you that we humans may deserve some of that blame.

Plant pollen, of course, is the main culprit behind itchy eyes and runny noses.

But a new study has shown that light pollution from streetlights, car headlights, illuminated billboards might be making things worse.

The research, published in Proceedings of the National Academy of Sciences, compared big, bright cities like New York and Philadelphia to darker places in the same region.

It found that trees in the cities start producing pollen earlier and finish later than they do in rural areas with less light.

One of the authors of the study said that all that extra city light has basically, quote, "...tricked plants into making decisions they wouldn't ordinarily make."

In all, the research found that light pollution could be adding as many as 130 days to allergy season in brighter areas, including more days where the pollen count ranks as severe.

One scientist not involved in the study said there are things cities could do to address this.

They could be more strategic about the kinds of trees they plant, opting for less light-sensitive species.