This split image shows the difference between an active Sun during solar maximum (on the left, captured in April 2014) and a quiet Sun during solar minimum (on the right, captured in December 2019). December 2019 marks the beginning of Solar Cycle 25, and the Sun’s activity will once again ramp up until solar maximum, predicted for 2025.Credits: NASA/SDO
Solar Cycle 25 has begun. During a media event on Tuesday, experts from NASA and the National Oceanic and Atmospheric Administration (NOAA) discussed their analysis and predictions about the new solar cycle – and how the coming upswing in space weather will impact our lives and technology on Earth, as well as astronauts in space.
The Solar Cycle 25 Prediction Panel, an international group of experts co-sponsored by NASA and NOAA, announced that solar minimum occurred in December 2019, marking the start of a new solar cycle. Because our Sun is so variable, it can take months after the fact to declare this event. Scientists use sunspots to track solar cycle progress; the dark blotches on the Sun are associated with solar activity, often as the origins for giant explosions – such as solar flares or coronal mass ejections – which can spew light, energy, and solar material into space.
“As we emerge from solar minimum and approach Cycle 25’s maximum, it is important to remember solar activity never stops; it changes form as the pendulum swings,” said Lika Guhathakurta, solar scientist at the Heliophysics Division at NASA Headquarters in Washington.
NASA and NOAA, along with the Federal Emergency Management Agency and other federal agencies and departments, work together on the National Space Weather Strategy and Action Plan to enhance space weather preparedness and protect the nation from space weather hazards. NOAA provides space weather predictions and satellites to monitor space weather in real time; NASA is the nation’s research arm, helping improve our understanding of near-Earth space, and ultimately, forecasting models…READ MORE
Antenna
Build the Pennyloop UHF Antenna
by Pennyloop The Pennyloop UHF antenna offers high performance in a very simple and cost effective design. It is also a very compact design lending it... Read more
The Mighty Rhombic, the King of Antennas
“There was a time, back in the 1930s and 1940s, when the rhombic antenna was the king. A remarkable antenna that had phenomenal directivity and... Read more
What is a Bi-Cone Antenna ?
Bi-Cone Antenna he Bi-Cone Antenna is a Dipole Antenna The Bi-Cone antenna is essentially a finite length dipole antenna that exhibits very wide reson... Read more
Kojinsha – KA1-DP – 7-50MHz – HF Antenna
Model KA1-DP Gain/Size Frequency Range 7-50 Element 1 Number of Elements for Each Band 7-50MHz DP Longest Element(m) 10.4 Power Rating 7/10MHz 1.2kW S... Read more
JK2040-Hawk – Yagi antenna of 5 elements for the 20 m band and 3 elements for the 40 m band on a 40 foot (12.19 m) boom
The JK2040 Hawk has phenomenal performance characteristics on 20m and 40m. The 38ft boom 20m Yagi has been optimized for high gain and a good F/R with... Read more
Review
ExpertPower Lithium Iron Phosphate Smart Charger – Ham Radio Q&A
The ExpertPower 12 volt 5 amp Smart Charger is designed to work with Lithium Iron Phosphate (LiFePO4) batteries of 10 amp/hours and larger in size. Read more
SDRPlay RSP-1A VS Airspy HF+
“Comparing reception of two popular SDR Receivers using the same antenna at 5 PM local time. Short wave and medium wave frequencies. Using the s... Read more
Debut of the TYT MD-2017 Dual Band DMR HT
Double the fun of digital ragchews with the TYT MD-2017 Dual Band DMR Digital Two Way Radio! The MD-2017 takes the clarity and full quieting of digita... Read more
Kenwood THK20A Transceiver – ARRL Video Review
A powerful communications tool in every sense, KENWOOD’s new TH-K20A/K40A radio offers 5.5 watts of RF output to ensure reliable performance. Numerous... Read more
Chameleon MPAS 2 NVIS (Near Vertical Incidence Skywave) Antenna
“Part 2 of my look at the Chameleon MPAS 2.0 Modular Portable Antenna System. I set the antenna up in the horizontal NVIS (Near Vertical Inciden... Read more
Equipment
VisAir QRP
VisAir QRP Read more
New ! Yaesu FT-410
YAESU FT-410 features General Rx Frequency Range: 30 kHz – 30 MHz (operating) 160 – 10 m (specified performance, Amateur bands only) Tx Frequency Ra... Read more
Elad FDM-S3 SDR
— WIDEBAND DIRECT SAMPLING RECEIVER —- JAN 2020 SPECIFICATIONS 2 switchable HF Antenna inputs direct sampling 1 VHF Antenna input direct s... Read more
SKY-221 SDR HF 160 -10m Transceiver
SKY-221 SDR HF 160 -10m Transceiver With Built-in ADC / DAC For SSB/CW/DIGI/AM/FM 10 Watts SKY-221/V21 / is designed based on SKY-209 with built i... Read more
ICOM IC-R8600 [ VIDEO ] – Hands on !
ICOM IC-R8600 Features Ultra-wide frequency coverage (10kHz-3GHz) with RSSI (Received Signal Strength Indication) function Fast moving, real-time spec... Read more
News
National Science Foundation Funds Creation of Research Lab at Alaska’s HAARP
A 5-year, $9.3 million National Science Foundation (NSF) grant will allow the University of Alaska Fairbanks (UAF) Geophysical Institute to establish... Read more
St. Vincent Radio Amateurs on Alert During Volcano Emergency
Donald de Riggs, J88CD, on the Caribbean island of St. Vincent, says that on April 13, the 42nd anniversary of the 1979 eruption of the La Soufriere v... Read more
Can You Cook A Hotdog With Ham Radio?
“I’ve always been facinated by the physical affects of RF. Today, a light experiment testing if can cook hotdogs with RF. The test incorpo... Read more
Updated Radio Frequency Exposure Rules Become Effective on May 3
The FCC has announced that rule changes detailed in a lengthy 2019 Report and Order governing RF exposure standards go into effect on May 3, 2021. The... Read more
March 2021 Volunteer Monitor Program Report
The Volunteer Monitor (VM) Program is a joint initiative between ARRL and the FCC to enhance compliance in the Amateur Radio Service. This is the Marc... Read more
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fsolar-cycle-25-is-here-nasa-noaa-scientists-explain-what-that-means%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151