SpaceX is aiming to break new barriers in polar exploration with the first manned space mission over the Earth's poles -- a private flight commanded by a crypto entrepreneur later this year. The mission, dubbed "Fram2" after a 19th century polar expedition schooner, is due to last between three to five days, and was purchased by Chun Wang, a bitcoin pioneer who founded f2pool and stakefish. It is aerospace's latest foray into the fast-growing private space tourism industry.

SEE THE CHALLENGES PRESENTED BY FLYING OVER POLES

Ukraine said Tuesday that its troops had advanced further into Russia's Kursk region and now control 74 settlements after launching a surprise cross-border incursion a week ago. Ukrainian forces entered Russia's Kursk region last Tuesday and have taken dozens of settlements in the biggest attack by a foreign army on Russian soil since World War II. US President Joe Biden on Tuesday said the incursion was giving Russia's President Vladimir Putin a "real dilemma," to defend rather than attack.

HOW RUSSIA IS BALANCING ITS ATTACK-DEFEND BATTLE PLAN

Elusive street artist Banksy's ninth animal-themed mural in nine days, unveiled on Tuesday on a shutter outside London Zoo, depicted a gorilla releasing animals from the zoo, tying together the series of artworks. Claimed by the artist on Instagram, the mural outside London Zoo showed a gorilla lifting the shutter to free birds and a seal, with some animals staring out from the inside. It is the latest in Banksy's series populating the British capital with animals

SEE THE ANIMALS GETTING A BANKSY MAKEOVER IN MURALS

What is the most expensive piece of Banksy's art ever sold at auction?

Tuesday's answer: In 2028, Los Angeles will join Paris and London as the only cities to host the Olympics three times in the modern era.