Explainers

Electricity bills are rising in the US — and politicians are mostly blaming either renewable energy or data centers and AI. But do either of those really explain the problem?

Nearly 80 years of nuclear waste in the US is currently stranded, stuck in "temporary" storage sites without a permanent place to go.

These sites are well secured, but have some drawbacks, especially in case of a natural disaster or terrorist attack.

In the last 18 months, at least eight US hospitals have closed their doors after being bought and sold by private equity firms.

For years, the private equity industry has stirred controversy when its investments in healthcare, retail, and restaurants have gone south.

How did Elon Musk go from being an Obama supporter to a self-described "dark MAGA" Trump ally? Here's a look at the relationship between two billionaires ahead of the second Trump presidency.

Business Insider secured access to an internal Tesla pay database, covering nearly 100,000 employees as of December 2021. Correspondent Grace Kay explains why employees working for Elon Musk's company might accept salaries lower than what they could earn at other top tech corporations or major car manufacturers.

Could one pill help us live longer? Scientists and investors are racing to find a drug to slow aging, trying things like metformin and rapamycin. But the breakthrough might not come from humans.

From the Sun Belt to the Rust Belt, these seven swing states will be key for the presidential candidates to win the 2024 US presidential election. Here's where Trump and Harris stand.

Billionaires are backing top scientists racing to develop tech that could reverse aging. Cellular reprogramming promises to rejuvenate the body — but how does it work, and is it safe?

What do we get wrong when we talk about ocean plastic? A lot, it turns out.

Business Insider producer Elizabeth McCauley dives into the scientific literature and talks to experts to find out how we actually solve this problem.

Millions have already been raised for the 2024 presidential race between Kamala Harris and Donald Trump. But where does that money come from? Here's how the ultrarich can sway an election.