内容摘要：Globally, leatherbacks are considered vulnerable to extinction, but many groups are critically endangered, according to the International Union for Conservation of Nature.

Globally, leatherbacks are considered vulnerable to extinction, but many groups are critically endangered, according to the International Union for Conservation of Nature.

“Despite its outsized influence in the Iranian economy, Bonyad Mostazafan operates outside of government oversight and, due to a 1993 decree by the Supreme Leader, is exempt from paying taxes on its multibillion-dollar earnings,” the U.S. Treasury said. The foundation says its affiliated companies pay taxes.On Tuesday, the Treasury issued new sanctions on China and Iran over the transshipment of sodium perchlorate and dioctyl sebacate to the Islamic Republic. Sodium perchlorate is used to produce ammonium perchlorate, a key ingredient to make solid fuel for ballistic missiles. The Treasury identified one individual from an Iranian firm as being linked to the Guard.

The Financial Times in January first reported that two loads of sodium perchlorate were coming to Iran from China. Tracking data showed that one of the ships identified as carrying the load was near Shahid Rajaei in recent weeks. The private security firm Ambrey separately said that the port received the sodium perchlorate, which is described as a white, sand-like solid.Iranian Defense Ministry spokesperson Gen. Reza Talaeinik denied earlier this week that missile fuel had been imported through the port. Iranian Cabinet spokesperson Fatemeh Mohajerani separately described the explosion Wednesday as coming from “human error, probably.”However, no official in Iran has offered any explanation for what material detonated with such incredible force at the site.

A reddish cloud could be seen in surveillance camera footage before the blast Saturday. That suggests a chemical compound like ammonia being involved in the blast, like, in which ammonium nitrate caught fire and exploded.

That cloud also resembled one seen in footage from a 1988 massive explosion in Nevada at the PEPCON plant that killed two people and injured hundreds. PEPCON, or the Pacific Engineering and Production Company of Nevada, made rocket fuel for NASA and had accumulated ammonium perchlorate that went unused after

, leading to the blast.spacecraft meant to land

in the 1970s is expected to soon plunge uncontrolled back to Earth.It’s too early to know where the half-ton mass of metal might come down or how much of it will survive reentry, according to

Dutch scientist Marco Langbroek predicts the failed spacecraft will reenter around May 10. He estimates it will come crashing in at 150 mph (242 kph), if it remains intact.“While not without risk, we should not be too worried,” Langbroek said in an email.