Learn how bank legal lending limits are determined and regulated. Discover what influences these limits and the exemptions ...

These objects are more than 100 times brighter than they should be. Observations by the agency’s NuSTAR X-ray telescope support a possible solution to this puzzle. Exotic cosmic objects known as ultra ...

You walk up to the ATM, expecting to grab a few hundred dollars for the weekend, when suddenly the transaction declines. The cash in your account hasn't vanished, yet accessing it has become ...

Exotic cosmic objects known as ultra-luminous X-ray sources produce about 10 million times more energy than the sun. They're so radiant, in fact, that they appear to surpass a physical boundary called ...

In this illustration of an ultra-luminous X-ray source, two rivers of hot gas are pulled onto the surface of a neutron star. Strong magnetic fields, shown in green, may change the interaction of ...