Jon Stewart enters the home stretch of his 16 years on Comedy Central's "The Daily Show" on Monday, with 12 more nights of jokes at the expense of those who make and report the news before he signs off for good on August 6.

Stewart's exit, the latest in a year of upheaval in late-night television, will be felt most acutely over the next 15 months as the U.S. approaches its first presidential election since 1996 without his comic take.

Artur Bilsky's Institute of Thermophysics recently sought to buy equipment from a Japanese company that was a routine purchase a few years ago. The request was turned down "categorically," said Bilsky, a researcher at the institute.

Hundreds of other Russian scientists are reporting similar experiences of being refused sale of scientific equipment from abroad, or seeing research papers curtly turned down by Western publications. The reason, they believe, is a combination of sanctions against Russia over its actions in Ukraine and rising hostility to Russia in the West seeping into the scientific community.

The National Air and Space Museum is launching a crowdfunding campaign to conserve the spacesuit Neil Armstrong wore on the moon.

The campaign begins Monday, marking 46 years since Armstrong's moonwalk in 1969. Conservators say spacesuits were built for short-term use with materials that break down over time.

Four people have been detained in connection with a sex video purportedly taken inside a Uniqlo fitting room that spread rapidly online, Beijing police said.

They were detained on suspicion of spreading obscene content, according to a police statement late Sunday. Police said they were still investigating the couple who can be seen in the cellphone video apparently having sex in the Japanese retailer's flagship Beijing store.

Knocked off his board by an attacking shark, three-time world champion Mick Fanning punched the creature before escaping unharmed during the televised finals of a world surfing competition in South Africa on Sunday.

The Australian surfer was struck by the shark from behind and knocked into the water as he sat on his board waiting his turn during the JBay Open in Jeffrey's Bay in the Eastern Cape Province.

Prince Ali bin al-Hussein wants Sepp Blatter to leave now as FIFA president, and let a leader from outside the sport oversee the next election and reforms of soccer's scandal-scarred governing body.

The former FIFA presidential candidate urged the executive committee, which meets later Monday, not to rush into an early election date.

Greek banks reopened Monday after a three-week shutdown imposed to stop a run on ATMs from crashing the financial system, but citizens woke up to widespread price hikes as part of a cash-for-reform deal with the country's creditors.

The bank shutdown since June 29 is estimated to have cost Greece's crisis-hit economy 3.0 billion euros ($3.3 billion) in market shortages and export disruption.

Alzheimer's has ravaged generations of Dean DeMoe's family — his grandmother, father, siblings — all in their 40s and 50s.

DeMoe himself inherited the culprit gene mutation and at 53, the North Dakota man volunteers for a drug study he hopes one day will end the family's burden.

With space shuttles now housed in history museums, innovators in aerospace are thinking of newer, better ways humans could reach space. One idea: What about a space elevator?

This real idea is one simulation that's part of a new high-tech interactive exhibition about the future of flight opening Aug. 1 at the Smithsonian's National Air and Space Museum. The exhibit also will serve as an important test case for new technologies to overhaul the popular museum with more interactives.

One of Spain's "ghost airports" — expensive projects that were virtually unused — received just one bid in a bankruptcy auction after costing some 1.1 billion euros ($1.2 billion) to build. The buyer's offer: 10,000 euros.

Ciudad Real's Central airport, about 235 kilometers (150 miles) south of Madrid, became a symbol of the country's wasteful spending during a construction boom that ended with the financial crisis of 2008, the year the airport opened. The operator of the airport went bankrupt in 2012 after it failed to draw enough traffic.