Pet supply retailer Chewy fetches 60% pop in debut

Strong demand gives PetSmart subsidiary a market value of about $15bn

Strong economic data eases fears of US slowdown

Retail sales rose for a second straight month in May

Facebook’s crucial crypto coin play

E3 clouds and consoles, meat moves, Brad Pitt and cold fusion, brain-machine gadgets

Your sleep tracker might make insomnia worse

Sleep tracking can help you determine if you're getting a good night's rest, but it might exacerbate your problems in some circumstances. Scientists talking to the New York Times have warned that sleep tracker apps and devices can worsen insomnia bo...

VR and microscopy help scientists see 'inside' diseases

You can only learn so much about cells by studying 2D pictures, and 3D microscope technology can produce an abundance of data that might be hard to decipher. Researchers at Carnegie Mellon University and Virginia Mason have an answer, though: let sci...

Walmart Grocery's Amazon Prime Now rival costs $98 per year

Walmart knows that it needs to have a stellar delivery service in order to compete with Amazon, which is why it's been rolling out Prime-like offers of its own. For Walmart Grocery, in particular, there's Delivery Unlimited: a subscription service th...