An atmospheric haze around a faraway planet—like the one which probably shrouded and cooled the young Earth—could show that the world is potentially habitable, or even be a sign of life itself.
Rain and favourable winds have brought clear skies to vast areas of Southeast Asia stricken for weeks by hazardous smoke from Indonesian fires, with officials expressing hope Thursday that the crisis could end soon.
The Philippines cancelled flights and put hospitals on alert on Sunday, as its southern and central islands were covered by thickening haze from Indonesian forest fires.
Singapore on Sunday urged fellow ASEAN members to take "firm and decisive action" against the lethal haze still spreading across the region ahead of a group summit in Malaysia next month.
Haze from Indonesian forest fires has spread to the southern Philippines, disrupting air traffic and prompting warnings for residents to wear face masks, authorities said Friday.
The haze suffocating Southeast Asia could last for another month, Malaysia's environment minister warned Monday, while a forestry expert said it could even take until year-end to clear the air.
Pluto has blue skies and patches of frozen water, according to the latest data out Thursday from NASA's unmanned New Horizons probe, which made a historic flyby of the dwarf planet in July.
Popular Thai holiday islands were engulfed with haze from Indonesian forest fires Thursday, forcing several planes packed with beach-bound tourists to turn back, further stoking regional tensions.
Malaysian authorities on Sunday ordered most of the country's schools shut for two days because of possible health risks posed by the thick haze from Indonesian forest fires.
Indonesia's disaster chief on Thursday defended the country's efforts to fight forest fires that have blanketed Southeast Asia in choking haze, and said he believed rains would arrive within a month to finally douse the blazes.