News | New Look at 2004's Martian Hole-in-One Site
https://www.jpl.nasa.gov/news/news.php?feature=6824

A new observation from NASA's Mars Reconnaissance Orbiter (MRO) captures the landing platform that the rover Opportunity left behind in Eagle Crater
more than 13 years and 27 miles (or 44 kilometers) ago. A series of bounces and tumbles after initial touchdown plunked the airbag-cushioned lander
into the crater, a mere 72 feet (22 meters) across, on Jan. 25, 2004, Universal Time (Jan. 24, PST). The scene includes Eagle Crater and Opportunity's
nearby parachute and backshell, from the April 10, 2017, observation by MRO's High Resolution Imaging Science Experiment (HiRISE) camera.

This is the first color view from HiRISE of the Eagle Crater scene. Mars Reconnaissance Orbiter began orbiting Mars more than two years after
Opportunity's landing. One of the first images from HiRISE in 2006 showed Opportunity at the rim of a much larger crater, Victoria, nearly 4 miles
(about 6 kilometers) south of the landing site. The camera also recorded a monochrome view of Eagle Crater that year.

New phenomenon discovered in the night sky
https://watchers.news/2017/04/21/new-phenomenon-discovered-in-the-night-sky/

A new phenomenon seen as a giant purple streak of light in the night sky has been recently discovered and, for lack of a better word,
named Steve. Steve was discovered thanks to scientists, citizen scientists, ground-based imagers and ESA's magnetic field Swarm mission.

Intriguing "lake" of dust hanging out at the bottom of a multi-layered crater
HiRISE | Slope Monitoring (ESP_049317_1675)
http://www.uahirise.org/ESP_049317_1675

Death by Asteroid: The Most Likely Ways for a Space Rock to Kill You
http://www.space.com/36532-killer-asteroids-most-likely-death-causes.html

If you live in fear of an asteroid strike, here's some detail to help flesh out your nightmares.

A killer space rock is most likely to get you via violent winds that fling you against something hard or powerful shock waves that rupture your
internal organs, according to a new study.

"This is the first study that looks at all seven impact effects generated by hazardous asteroids and estimates which are, in terms of human loss,
most severe," lead author Clemens Rumpf, a senior research assistant at the University of Southampton in the United Kingdom, said in a statement.

Rumpf and his colleagues simulated 50 000 asteroid strikes around the globe using computer models. These artificial impacts involved space rocks
15 to 400 meters — the size range that hits Earth most frequently, the scientists said.

Then, the team estimated the percentage of deaths caused by each of the seven effects Rumpf referred to: shock waves, wind blasts, heat, flying
debris, cratering, seismic shaking and tsunamis.

Wind and shock waves were the most deadly, together accounting for more than 60 percent of all lives lost. (Though these two effects act in concert,
wind blasts were far more devastating than shock waves, the study found.) The sizzling heat of an impact was responsible for nearly 30 percent of
deaths, and tsunamis took most of the rest.

Asteroid impact effects and their immediate hazards for human populations - Rumpf - 2017 - Geophysical Research Letters - Wiley Online Library
http://onlinelibrary.wiley.com/doi/10.1002/2017GL073191/full

Increase in average casualties per impactor size and the increasing contribution by each impact effect. First casualties due to wind blast and thermal radiation occurred at 18 m.
Impactors of 40 m produced the first pressure losses, and first surface impacts were recorded for impactors larger than 56 m. (b) Impact effect dominance distribution over
the asteroid size range up to 400 m.

BBC - Future - Infographic: Absolute zero to ‘absolute hot’
http://www.bbc.com/future/story/20131218-absolute-zero-to-absolute-hot
BBC Future takes the temperature of our planet – and the Universe – to find the hottest and coldest things ever measured.

Approximate true color close-up of Saturn's rings seen by Cassini on April 19th with processing of Kevin Gill.
Assembled from raw uncalibrated red, green, and ultraviolet (UV3) filtered images. Credits: NASA/JPL-Caltech/SSI/Kevin M. Gill
Saturn - April 19 2017 | Assembled from raw uncalibrated red… | Flickr
https://www.flickr.com/photos/kevinmgill/34049287211/

This weekend, it's the beginning of the end for Cassini | The Planetary Society
http://www.planetary.org/blogs/jason-davis/2017/20170419-cassini-beginning-of-end-cassini.html

This Saturday, in the pre-dawn hours of Earth Day, NASA's long-lived Saturn spacecraft will buzz Titan for the 127th and final time.
The moon's gravity will bend Cassini's trajectory, sending it into a new orbit that will slice between Saturn's rings and the planet
itself—a feat never before attempted.