The DART spacecraft collides with the Dimorphos asteroid (NASA)
NASA Double Asteroid Redirection Test Livestream: After months of waiting, the NASA DART mission spacecraft is ready for its crash landing. What is more, you can watch NASA DART mission live updates now. In fact, in just one hour, the world will witness a historic moment as NASA sends its spacecraft to collide with Asteroid Dimorphous to test the planetary
defense mechanism against an incoming space rock. The mission is testing the kinetic impactor method, where a collision will push away an asteroid from its current trajectory using a high speed spacecraft and forcing it to crash on the asteroid at 14000 mph. NASA is aiming to use the data collected from the mission to prepare simulation models to know the speed, duration, mass of impact and other measures to prepare a comprehensive defense mechanism. The Hubble Space Telescope and the James Webb Space Telescope will also be monitoring the impact.
ESA to conduct an in-depth analysis of the collision
European Space Agency's Hera mission will conduct an in-depth analysis of the DART collision and its long term consequences in 2026.
27 Sep 2022, 04:55 IST
Impact success!
IMPACT SUCCESS! Watch from #DARTMIssion’s DRACO Camera, as the vending machine-sized spacecraft successfully collides with asteroid Dimorphos, which is the size of a football stadium and poses no threat to Earth. pic.twitter.com/7bXipPkjWD
FreeMarker template error (DEBUG mode; use RETHROW in production!):
The following has evaluated to null or missing:
==> embedElementCount [in template "upgraded-story/elementBase.ftl" at line 11, column 28]
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Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
- Failed at: #assign embedElementCount = embedElem... [in template "upgraded-story/elementBase.ftl" in macro "elementDynamic" at line 11, column 1]
- Reached through: @dynamicElement.elementDynamic elemen... [in template "upgraded-story/liveblogElement.ftl" at line 56, column 4]
- Reached through: #include "/upgraded-story/liveblogEle... [in template "story/elementBase.ftl" in macro "elementDynamic" at line 39, column 1]
- Reached through: @dynamicElement.elementDynamic elemen... [in template "new-story/storyDetails.ftl" at line 533, column 1]
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Java stack trace (for programmers):
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freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...]
at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134)
at freemarker.core.EvalUtil.coerceModelToTextualCommon(EvalUtil.java:467)
at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:389)
at freemarker.core.AddConcatExpression._eval(AddConcatExpression.java:83)
at freemarker.core.AddConcatExpression._eval(AddConcatExpression.java:56)
at freemarker.core.Expression.eval(Expression.java:83)
at freemarker.core.Assignment.accept(Assignment.java:134)
at freemarker.core.Environment.visit(Environment.java:325)
at freemarker.core.Environment.visit(Environment.java:331)
at freemarker.core.SwitchBlock.accept(SwitchBlock.java:79)
at freemarker.core.Environment.visit(Environment.java:361)
at freemarker.core.Environment.invoke(Environment.java:754)
at freemarker.core.UnifiedCall.accept(UnifiedCall.java:83)
at freemarker.core.Environment.visit(Environment.java:325)
at freemarker.core.Environment.visit(Environment.java:331)
at freemarker.core.Environment.visit(Environment.java:331)
at freemarker.core.Environment.include(Environment.java:2559)
at freemarker.core.Include.accept(Include.java:171)
at freemarker.core.Environment.visit(Environment.java:325)
at freemarker.core.Environment.visit(Environment.java:331)
at freemarker.core.SwitchBlock.accept(SwitchBlock.java:79)
at freemarker.core.Environment.visit(Environment.java:361)
at freemarker.core.Environment.invoke(Environment.java:754)
at freemarker.core.UnifiedCall.accept(UnifiedCall.java:83)
at freemarker.core.Environment.visit(Environment.java:361)
at freemarker.core.IteratorBlock$IterationContext.executedNestedContentForCollOrSeqListing(IteratorBlock.java:317)
at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:271)
at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:242)
at freemarker.core.Environment.visitIteratorBlock(Environment.java:635)
at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:107)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:93)
at freemarker.core.Environment.visit(Environment.java:325)
at freemarker.core.Environment.visit(Environment.java:331)
at freemarker.core.Environment.visit(Environment.java:331)
at freemarker.core.Environment.process(Environment.java:304)
at freemarker.template.Template.process(Template.java:382)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:396)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:309)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:257)
at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:165)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:314)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1325)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1069)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1008)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:978)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:870)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:855)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:728)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:470)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:316)
at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:213)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:171)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:389)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:158)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:126)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:111)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:84)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
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