Futures
Access hundreds of perpetual contracts
TradFi
Gold
One platform for global traditional assets
Options
Hot
Trade European-style vanilla options
Unified Account
Maximize your capital efficiency
Demo Trading
Introduction to Futures Trading
Learn the basics of futures trading
Futures Events
Join events to earn rewards
Demo Trading
Use virtual funds to practice risk-free trading
Launch
CandyDrop
Collect candies to earn airdrops
Launchpool
Quick staking, earn potential new tokens
HODLer Airdrop
Hold GT and get massive airdrops for free
Launchpad
Be early to the next big token project
Alpha Points
Trade on-chain assets and earn airdrops
Futures Points
Earn futures points and claim airdrop rewards
Old NASA science satellite plunges back to Earth
CAPE CANAVERAL, Fla. (AP) — An old NASA science satellite plunged uncontrolled from orbit and reentered over the Pacific on Wednesday.
The U.S. Space Force said the Van Allen Probe A came in west of the Galapagos Islands.
NASA expected some of the 1,323-pound (600-kilogram) spacecraft to survive entry, with most of it burning up in the atmosphere. The space agency put the risk of bodily harm at 1-in-4,200.
Its twin, the Van Allen Probe B, is still orbiting Earth, but no longer functioning.
Launched in 2012, the two spacecraft flew through the Van Allen radiation belts that surround Earth, studying them for seven years before ceasing operation.
When the satellites ran out of fuel in 2019, NASA anticipated them remaining in orbit until 2034. But the intense solar activity over the past several years hastened the A probe’s demise, the space agency said. The B probe is not expected to reenter before 2030.
Dutch scientist Marco Langbroek said all re-entries are difficult to predict, but this one was especially challenging given its eccentric, lopsided orbit.
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.