Science News Roundup: No visa required: Cuban biologists unravel mysteries of bird migration; Japan successfully launches next-generation H3 rocket after failure last year and more

"The launch of the first Marathon-IoT demonstration space apparatus has been postponed for the purpose of additional software checks, as well as clarifying the program of additional research," Roscosmos said. No visa required: Cuban biologists unravel mysteries of bird migration University of Havana professor Daniela Ventura has intercepted a migrant.

Following is a summary of current science news briefs.

Russia delays launch of 'Internet of Things' satellite

Russia has delayed the launch of its first Internet of Things "Marathon" satellite due to the need for additional software checks, the TASS state news agency quoted Russia's space corporation, Roscosmos, as saying on Friday. "The launch of the first Marathon-IoT demonstration space apparatus has been postponed for the purpose of additional software checks, as well as clarifying the program of additional research," Roscosmos said.

No visa required: Cuban biologists unravel mysteries of bird migration

University of Havana professor Daniela Ventura has intercepted a migrant. Her net, stretched taut on a forest trail in Havana's Botanical Garden, trembles. A catbird - a discretely clad gray bird with a black cap - thrashes then succumbs as she plucks it from the net's near invisible webbing.

Japan successfully launches next-generation H3 rocket after failure last year

Japan successfully launched its new H3 flagship rocket on Saturday, putting its space programme back on track after multiple setbacks including the failure of the rocket's inaugural flight last year. The launch also marks a second straight win for the Japan Aerospace Exploration Agency (JAXA) after its lunar lander, SLIM, achieved a "pinpoint" touchdown last month and made Japan only the fifth country to put a spacecraft on the moon.