Mysterious dark lines that appear on the slopes of Martian dunes and craters each warm season may be dry landslides instead of flowing water as previously thought. Dark flows streak down hills and craters on Mars each summer, before fading away in the colder months. Initially, these lines – called recurring slope lineae – were thought to be evidence of liquid water flowing on the planet’s surface.
White dwarf stars shredded by black holes could explain showers of high-energy cosmic rays and neutrinos we see on Earth. Cosmic rays and neutrinos are part of the rain of subatomic particles from space that bombard Earth every day. But what produces these difficult-to-detect particles? A team led by Daniel Biehl at Deutsches Elektronen-Synchrotron in Germany suggest that tidal disruption events in white dwarfs could be responsible.
On July 14, 1965, Mariner 4 sent home the very first television pictures of Mars during its historic flyby. But instead of waiting for time-consuming image processing, impatient scientists created this awesome colour-by-numbers wall chart from the raw data.Top image: Close-up view of hand-coloured number tapes. Credit: NASA/JPL/Dan GoodsLaunched on November 28, 1964, the Mariner 4 probe arrived at Mars later that summer.
Muck Rack makes it simple to find people, tweets, or articles that mention any name, keyword, company, hashtag etc. We've compiled this guide to help you make the most of your search.
Selecting a term
Start searching tweets, articles from media outlets, articles mentioned in tweets, journalists'
names, titles and bios with some suggested searches:
Companies or Topics (e.g. iPhone, Microsoft)
Phrases (e.g. "cloud computing") — use quotes to keep the terms together
Twitter handles (e.g. @username) — returns those who have mentioned or replied to
Names (e.g. "David Pogue")
Hashtags (e.g. #sxsw, #london2012)
Bio details (e.g. vegan, Olympics, father)
Muck Rack's Advanced Search allows for many boolean operators.
Find results that mention multiple specified terms, use AND or
+. For example, ensure each result contains both Elon Musk and Mark Zuckerberg by
searching Musk AND Zuckerberg or Musk + Zuckerberg.
Use the operators OR or , to broaden your search when you'd like either of
multiple terms to appear in results. (This is the default behavior of our search when no operators
are used). For example, results will contain either cake or cookie by searching cake OR cookie or cake,cookie
Use NOT or - to subtract results from your search. For
example, searching Disney will yield results about the Walt Disney Company as well as Walt Disney
World Resort. To exclude mentions of Disney World, search for Disney -World or Disney
When using one of these operators with a phrase, enclose it in quotation marks. For example, you can
find results about smartphones excluding Apple's iPhone 4S by searching smartphone -"iPhone
Exact case matching or punctuation
If you're searching for a brand name or keyword that relies on specific punctuation marks or capitalization, you can
find results that match your exact query by adding matchcase: before the keyword you're searching for, like matchcase:E*TRADE .
Use parentheses to separate multiple
boolean phrases. For example, to find journalists talking about having fun in Disney World or
Disneyland, search for ("disney world" OR disneyland) AND fun.
An asterisk can be used to search for any variation of a root word truncated by the asterisk. For example, searching for admin* will return results for administrator, administration, administer, administered, etc.
A near operator is an AND operator where you can control the distance between the words. You can vary the distance the near operation uses by adding a forward slash and number (between 0-99) such as strawberries NEAR/10 "whipped cream", which means the strawberries must exist within 10 words of "whipped cream".