Look out for these astronomical events in May

April showers bring May flowers, and apparently, that's the case for the full moon this month too. Here are the celestial shows to look out for this month.

China’s Mars rover discovers signs of recent water in sand dunes

The rover's radar detected what appears to be a subsurface layer of water ice beneath a layer of Martian soil. The discovery is significant as it suggests that water may exist in a liquid state on Mars.

Park rangers: 70-year-old man fends off cougar attack with rock

The unidentified man told authorities that he was hiking through some trees when a cougar jumped out and knocked him to the ground.

Yosemite Valley to reopen after fears of flooding recede

Temporarily shuttered parts of Yosemite Valley will reopen earlier than expected after fears of flooding receded Saturday, park officials announced.

Most of Yosemite National Park closed until next week

The Yosemite area is bracing for flooding, and rangers have closed much of the famous park to visitors for the next few days. 

Scientists discover 3 new sea worms that glow in the dark

The newly-discovered bioluminescent Polycirrus worms were named after creatures from Japanese folklore and an influential marine biologist.

San Joaquin bracing for high snowmelt water flows

Near Vernalis in San Joaquin County, the San Joaquin River is fed from the north by the high-flowing Stanislaus River and from the south where the Tuolumne River dumps into it.

Black bear ‘destroyed’ after killing hikers’ dog, hiding body in Canada's Jasper National Park

The attack happened around 4 p.m. Saturday at the Alberta park situated in the Canadian Rockies, as two hikers and their two dogs were returning to the trailhead on Wabasso Lake Trail, Parks Canada said.

Photographer captures rare, spectacular Northern Lights show in Bay Area

A major geomagnetic storm last week led to rare and spectacular viewings of Northern Lights in California, and a Bay Area photographer was among the lucky sky-gazers who managed to capture the extraordinary event.

Once-drained Tulare Lake growing due to snowmelt, threat of flooding a concern

Several communities across California are preparing for trouble as the record Sierra snow starts to melt. The concern is greatest for Tulare Lake, a natural lake that was drained to make way for farming. That lake has reappeared and now threatens entire towns.

Watch: Moose helps itself to popcorn and a Happy Meal at Alaska movie theater

"I do not know if a Happy Meal is good for a moose or not. However, I can confidently say that it’s not in its natural diet," a wildlife biologist quipped.

Wendy's is offering free food while Mercury is in retrograde

The fast food chain is offering free food deals every day while Mercury is in retrograde from April 21 - May 14.

California's water and snowpack Motherlode: a blessing or a curse?

California's Motherlode of water is a blessing and a curse. The California Department of Water Resources is telling the 29 public water agencies serving 27 million Californians, they will get 100% the water they request. That has not happened in 17 years.

Loons are falling from the sky in Wisconsin

There have been reports of loons stranded on the ground after they fell from the sky.

Taxidermy bird drones aim to assist, advance wildlife research

Researchers hope to expand what they learn from these taxidermy bird drones to improve fuel efficiency in aviation and possibly into assisting space exploration.

Pentagon shares newly declassified UFO videos, tracking over 650 potential cases

Of the more than 650 potential UFO sightings, U.S. officials have prioritized about half of them that appear to be especially interesting and anomalous.